Improve database semconv stability test formatting

[trask]

Just a little renaming and static importing to improve the database semconv stability test formatting before I start adding a bunch more...

adding the script I used to static import so I can find and copy-paste-modify later when needed:

for file in $(find instrumentation -name '*Test.java'); do
  echo "Processing $file"

  # stable semconv

  negative_lookbehind='(?<!import static io.opentelemetry.instrumentation.testing.junit.db.)'

  if grep -Po "${negative_lookbehind}SemconvStabilityUtil.maybeStable" $file; then
    perl -i -pe "s/${negative_lookbehind}SemconvStabilityUtil.maybeStable/maybeStable/" $file
    sed -i "0,/^import/{s/^import/import static io.opentelemetry.instrumentation.testing.junit.db.SemconvStabilityUtil.maybeStable;\nimport/}" $file
  fi

  negative_lookbehind='(?<!import static io.opentelemetry.instrumentation.api.internal.)'

  if grep -Po "${negative_lookbehind}SemconvStability.emitStableDatabaseSemconv" $file; then
    perl -i -pe "s/${negative_lookbehind}SemconvStability.emitStableDatabaseSemconv/emitStableDatabaseSemconv/" $file
    sed -i "0,/^import/{s/^import/import static io.opentelemetry.instrumentation.api.internal.SemconvStability.emitStableDatabaseSemconv;\nimport/}" $file
  fi
done

./gradlew spotlessApply

[jaydeluca]

was this removal intentional?

[trask]

oh yeah, I had meant to leave a github comment about it, it's unused (we don't have any cosmosdb tests)