Remove bad/copy paste lines

Author: ToxicBakery

library/build.gradle

@@ -90,10 +90,5 @@ apply from: "${rootDir}/publish.gradle"
 task dokkaGhPages(type: org.jetbrains.dokka.gradle.DokkaTask) {
     outputFormat = 'html'
     outputDirectory = "$buildDir/gh-pages"
-    sourceDirs = files(
-            'src/main/java',
-            '../vr/src/main/java',
-            '../vuforia/src/main/java',
-            '../wear/src/main/java',
-    )
+    sourceDirs = files('src/main/java')
 }