Disable publishing of SDK shaded artifacts. (#3614)

opentelemetry-api-shaded-for-instrumenting/build.gradle.kts

@@ -2,7 +2,6 @@ plugins {
   id("com.github.johnrengelman.shadow")
 
   id("otel.java-conventions")
-  id("otel.publish-conventions")
 }
 
 description = "opentelemetry-api shaded for internal javaagent usage"

opentelemetry-ext-annotations-shaded-for-instrumenting/build.gradle.kts

@@ -2,7 +2,6 @@ plugins {
   id("com.github.johnrengelman.shadow")
 
   id("otel.java-conventions")
-  id("otel.publish-conventions")
 }
 
 description = "opentelemetry-extension-annotations shaded for internal javaagent usage"