Fix genHiddenBuilder generating an invalid buildUpon() method

This removes a redundant check causing the method to be generated

Test: . frameworks/base/tests/Codegen/runTest.sh
Change-Id: Ibe7ee110f7b21875d2f7f6784deca66638bab6c4
diff --git a/tools/codegen/src/com/android/codegen/ClassPrinter.kt b/tools/codegen/src/com/android/codegen/ClassPrinter.kt
index b90e1bb..8cae14a 100644
--- a/tools/codegen/src/com/android/codegen/ClassPrinter.kt
+++ b/tools/codegen/src/com/android/codegen/ClassPrinter.kt
@@ -145,7 +145,6 @@
             }
             return when {
                 cliArgs.contains("--hidden-$kebabCase") -> true
-                this == FeatureFlag.BUILD_UPON -> FeatureFlag.BUILDER.hidden
                 else -> false
             }
         }
diff --git a/tools/codegen/src/com/android/codegen/SharedConstants.kt b/tools/codegen/src/com/android/codegen/SharedConstants.kt
index 6a635d0..d9ad649 100644
--- a/tools/codegen/src/com/android/codegen/SharedConstants.kt
+++ b/tools/codegen/src/com/android/codegen/SharedConstants.kt
@@ -1,7 +1,7 @@
 package com.android.codegen
 
 const val CODEGEN_NAME = "codegen"
-const val CODEGEN_VERSION = "1.0.21"
+const val CODEGEN_VERSION = "1.0.22"
 
 const val CANONICAL_BUILDER_CLASS = "Builder"
 const val BASE_BUILDER_CLASS = "BaseBuilder"