Releng: use boot OT/J compiler to create new compiler for phase 2

- disable apt during compiler compilation to avoid compatibility issues
diff --git a/releng/build-scripts/build/compiler.OT-Compiler.properties b/releng/build-scripts/build/compiler.OT-Compiler.properties
index e7b97d5..bddd56a 100644
--- a/releng/build-scripts/build/compiler.OT-Compiler.properties
+++ b/releng/build-scripts/build/compiler.OT-Compiler.properties
@@ -1,7 +1,7 @@
 # Configure the build compiler for phase 1.
 # This file is read from build/build.xml
 build.compiler=org.eclipse.jdt.core.JDTCompilerAdapter
-compilerArg=-enableJavadoc -encoding UTF-8
+compilerArg=-enableJavadoc -encoding UTF-8 -proc:none
 javaSource=1.6
 javacSource=1.6
 javacTarget=1.6