Fix OpenTelemetrySdkBuilderUtil.setConfigProvider Javadoc copy-paste

[thswlsqls]

Description

• OpenTelemetrySdkBuilderUtil.setConfigProvider carried a copy-pasted Javadoc reading "Reflectively set the {@link ScopeConfigurator} to the {@link SdkTracerProvider}", but the method sets a SdkConfigProvider on the OpenTelemetrySdkBuilder.
• ScopeConfigurator was never imported here, so the {@link} was a dead reference, and the SdkTracerProvider import existed only to resolve that broken link.
• Corrected the Javadoc to reference SdkConfigProvider and OpenTelemetrySdkBuilder (both already imported) and removed the now-unused SdkTracerProvider import.
• The sibling Sdk{Tracer,Meter,Logger}ProviderUtil classes carry the same sentence correctly because they import and operate on ScopeConfigurator; this internal util just inherited the wording.

Testing done

• Docs-only (internal package), test-exempt: no test added; behavior, signature, and public API are unchanged.
• ./gradlew :sdk:all:check passed (jApiCmp, checkstyle, ErrorProne/NullAway, tests).
• Internal package (japicmp untracked) → no docs/apidiffs update; not user-facing → no CHANGELOG.md entry.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 78.78%. Comparing base (824334c) to head (b2048ff).

Additional details and impacted files

@@             Coverage Diff              @@
##               main    #8502      +/-   ##
============================================
+ Coverage     78.77%   78.78%   +0.01%     
  Complexity     8579     8579              
============================================
  Files          1009     1009              
  Lines         28993    28993              
  Branches       3599     3599              
============================================
+ Hits          22839    22843       +4     
+ Misses         5311     5308       -3     
+ Partials        843      842       -1     

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