[chore] remove vendor

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diff --git a/vendor/go.opentelemetry.io/otel/sdk/metric/internal/x/README.md b/vendor/go.opentelemetry.io/otel/sdk/metric/internal/x/README.md
deleted file mode 100644
index 59f736b73..000000000
--- a/vendor/go.opentelemetry.io/otel/sdk/metric/internal/x/README.md
+++ /dev/null
@@ -1,131 +0,0 @@
-# Experimental Features
-
-The metric SDK contains features that have not yet stabilized in the OpenTelemetry specification.
-These features are added to the OpenTelemetry Go metric SDK prior to stabilization in the specification so that users can start experimenting with them and provide feedback.
-
-These feature may change in backwards incompatible ways as feedback is applied.
-See the [Compatibility and Stability](#compatibility-and-stability) section for more information.
-
-## Features
-
-- [Cardinality Limit](#cardinality-limit)
-- [Exemplars](#exemplars)
-- [Instrument Enabled](#instrument-enabled)
-
-### Cardinality Limit
-
-The cardinality limit is the hard limit on the number of metric streams that can be collected for a single instrument.
-
-This experimental feature can be enabled by setting the `OTEL_GO_X_CARDINALITY_LIMIT` environment value.
-The value must be an integer value.
-All other values are ignored.
-
-If the value set is less than or equal to `0`, no limit will be applied.
-
-#### Examples
-
-Set the cardinality limit to 2000.
-
-```console
-export OTEL_GO_X_CARDINALITY_LIMIT=2000
-```
-
-Set an infinite cardinality limit (functionally equivalent to disabling the feature).
-
-```console
-export OTEL_GO_X_CARDINALITY_LIMIT=-1
-```
-
-Disable the cardinality limit.
-
-```console
-unset OTEL_GO_X_CARDINALITY_LIMIT
-```
-
-### Exemplars
-
-A sample of measurements made may be exported directly as a set of exemplars.
-
-This experimental feature can be enabled by setting the `OTEL_GO_X_EXEMPLAR` environment variable.
-The value of must be the case-insensitive string of `"true"` to enable the feature.
-All other values are ignored.
-
-Exemplar filters are a supported.
-The exemplar filter applies to all measurements made.
-They filter these measurements, only allowing certain measurements to be passed to the underlying exemplar reservoir.
-
-To change the exemplar filter from the default `"trace_based"` filter set the `OTEL_METRICS_EXEMPLAR_FILTER` environment variable.
-The value must be the case-sensitive string defined by the [OpenTelemetry specification].
-
-- `"always_on"`: allows all measurements
-- `"always_off"`: denies all measurements
-- `"trace_based"`: allows only sampled measurements
-
-All values other than these will result in the default, `"trace_based"`, exemplar filter being used.
-
-[OpenTelemetry specification]: https://github.com/open-telemetry/opentelemetry-specification/blob/a6ca2fd484c9e76fe1d8e1c79c99f08f4745b5ee/specification/configuration/sdk-environment-variables.md#exemplar
-
-#### Examples
-
-Enable exemplars to be exported.
-
-```console
-export OTEL_GO_X_EXEMPLAR=true
-```
-
-Disable exemplars from being exported.
-
-```console
-unset OTEL_GO_X_EXEMPLAR
-```
-
-Set the exemplar filter to allow all measurements.
-
-```console
-export OTEL_METRICS_EXEMPLAR_FILTER=always_on
-```
-
-Set the exemplar filter to deny all measurements.
-
-```console
-export OTEL_METRICS_EXEMPLAR_FILTER=always_off
-```
-
-Set the exemplar filter to only allow sampled measurements.
-
-```console
-export OTEL_METRICS_EXEMPLAR_FILTER=trace_based
-```
-
-Revert to the default exemplar filter (`"trace_based"`)
-
-```console
-unset OTEL_METRICS_EXEMPLAR_FILTER
-```
-
-### Instrument Enabled
-
-To help users avoid performing computationally expensive operations when recording measurements, synchronous instruments provide an `Enabled` method.
-
-#### Examples
-
-The following code shows an example of how to check if an instrument implements the `EnabledInstrument` interface before using the `Enabled` function to avoid doing an expensive computation:
-
-```go
-type enabledInstrument interface { Enabled(context.Context) bool }
-
-ctr, err := m.Int64Counter("expensive-counter")
-c, ok := ctr.(enabledInstrument)
-if !ok || c.Enabled(context.Background()) {
-    c.Add(expensiveComputation())
-}
-```
-
-## Compatibility and Stability
-
-Experimental features do not fall within the scope of the OpenTelemetry Go versioning and stability [policy](../../../../VERSIONING.md).
-These features may be removed or modified in successive version releases, including patch versions.
-
-When an experimental feature is promoted to a stable feature, a migration path will be included in the changelog entry of the release.
-There is no guarantee that any environment variable feature flags that enabled the experimental feature will be supported by the stable version.
-If they are supported, they may be accompanied with a deprecation notice stating a timeline for the removal of that support.
diff --git a/vendor/go.opentelemetry.io/otel/sdk/metric/internal/x/x.go b/vendor/go.opentelemetry.io/otel/sdk/metric/internal/x/x.go
deleted file mode 100644
index a98606238..000000000
--- a/vendor/go.opentelemetry.io/otel/sdk/metric/internal/x/x.go
+++ /dev/null
@@ -1,81 +0,0 @@
-// Copyright The OpenTelemetry Authors
-// SPDX-License-Identifier: Apache-2.0
-
-// Package x contains support for OTel metric SDK experimental features.
-//
-// This package should only be used for features defined in the specification.
-// It should not be used for experiments or new project ideas.
-package x // import "go.opentelemetry.io/otel/sdk/metric/internal/x"
-
-import (
-	"context"
-	"os"
-	"strconv"
-)
-
-// CardinalityLimit is an experimental feature flag that defines if
-// cardinality limits should be applied to the recorded metric data-points.
-//
-// To enable this feature set the OTEL_GO_X_CARDINALITY_LIMIT environment
-// variable to the integer limit value you want to use.
-//
-// Setting OTEL_GO_X_CARDINALITY_LIMIT to a value less than or equal to 0
-// will disable the cardinality limits.
-var CardinalityLimit = newFeature("CARDINALITY_LIMIT", func(v string) (int, bool) {
-	n, err := strconv.Atoi(v)
-	if err != nil {
-		return 0, false
-	}
-	return n, true
-})
-
-// Feature is an experimental feature control flag. It provides a uniform way
-// to interact with these feature flags and parse their values.
-type Feature[T any] struct {
-	key   string
-	parse func(v string) (T, bool)
-}
-
-func newFeature[T any](suffix string, parse func(string) (T, bool)) Feature[T] {
-	const envKeyRoot = "OTEL_GO_X_"
-	return Feature[T]{
-		key:   envKeyRoot + suffix,
-		parse: parse,
-	}
-}
-
-// Key returns the environment variable key that needs to be set to enable the
-// feature.
-func (f Feature[T]) Key() string { return f.key }
-
-// Lookup returns the user configured value for the feature and true if the
-// user has enabled the feature. Otherwise, if the feature is not enabled, a
-// zero-value and false are returned.
-func (f Feature[T]) Lookup() (v T, ok bool) {
-	// https://github.com/open-telemetry/opentelemetry-specification/blob/62effed618589a0bec416a87e559c0a9d96289bb/specification/configuration/sdk-environment-variables.md#parsing-empty-value
-	//
-	// > The SDK MUST interpret an empty value of an environment variable the
-	// > same way as when the variable is unset.
-	vRaw := os.Getenv(f.key)
-	if vRaw == "" {
-		return v, ok
-	}
-	return f.parse(vRaw)
-}
-
-// Enabled returns if the feature is enabled.
-func (f Feature[T]) Enabled() bool {
-	_, ok := f.Lookup()
-	return ok
-}
-
-// EnabledInstrument informs whether the instrument is enabled.
-//
-// EnabledInstrument interface is implemented by synchronous instruments.
-type EnabledInstrument interface {
-	// Enabled returns whether the instrument will process measurements for the given context.
-	//
-	// This function can be used in places where measuring an instrument
-	// would result in computationally expensive operations.
-	Enabled(context.Context) bool
-}