Remove fixPom method from build.gradle (#7253)

The pom is generated with the reactive-streams scope set to 'compile' by default.

To test that this works, the below gradle tasks were run:
./gradlew -PreleaseMode=full cleanGeneratePomFileForMavenPublication generatePomFileForMavenPublication
./gradlew -PreleaseMode=branch cleanGeneratePomFileForMavenPublication generatePomFileForMavenPublication

Both tasks generated a pom file with the reactive-streams set to
'compile' scope.

Author: benjamintboyle

build.gradle

@@ -191,27 +191,12 @@ checkstyle {
 
 apply from: file("gradle/javadoc_cleanup.gradle")
 
-def fixPom() {
-    // Reactive-Streams as compile dependency
-    publishing.publications.all {
-      pom.withXml {
-        asNode().dependencies."*".findAll() {
-          it.scope.text() == "runtime" && project.configurations.compile.allDependencies.find { dep ->
-            dep.name == it.artifactId.text()
-          }
-        }.each { it.scope*.value = "compile"}
-      }
-    }
-}
-
 if (rootProject.hasProperty("releaseMode")) {
     logger.lifecycle("ReleaseMode: {}", rootProject.releaseMode)
 
   if ("branch".equals(rootProject.releaseMode)) {
 
     if (version.endsWith("-SNAPSHOT")) {
-      fixPom()
-      
       publishing {
         repositories {
           maven {
@@ -229,8 +214,6 @@ if (rootProject.hasProperty("releaseMode")) {
   }
 
   if ("full".equals(rootProject.releaseMode)) {
-    fixPom()
-
     signing {
       if (project.hasProperty("SIGNING_PRIVATE_KEY") && project.hasProperty("SIGNING_PASSWORD")) {
          useInMemoryPgpKeys(project.getProperty("SIGNING_PRIVATE_KEY"), project.getProperty("SIGNING_PASSWORD"))