remove unused method

Author: zeitlinger

instrumentation-api-incubator/src/main/java/io/opentelemetry/instrumentation/api/incubator/builder/internal/DefaultHttpClientInstrumenterBuilder.java

@@ -193,7 +193,6 @@ public DefaultHttpClientInstrumenterBuilder<REQUEST, RESPONSE> setBuilderCustomi
   }
 
   public Instrumenter<REQUEST, RESPONSE> build() {
-
     SpanNameExtractor<? super REQUEST> spanNameExtractor =
         spanNameExtractorTransformer.apply(httpSpanNameExtractorBuilder.build());
 
@@ -224,10 +223,6 @@ InstrumenterBuilder<BUILDERREQUEST, BUILDERRESPONSE> instrumenterBuilder(
     return Instrumenter.builder(openTelemetry, instrumentationName, spanNameExtractor);
   }
 
-  public String getInstrumentationName() {
-    return instrumentationName;
-  }
-
   @CanIgnoreReturnValue
   public DefaultHttpClientInstrumenterBuilder<REQUEST, RESPONSE> configure(CommonConfig config) {
     set(config::getKnownHttpRequestMethods, this::setKnownMethods);