Remove dead argument from RSCompilerDriver().

Change-Id: I4307c10d01bc6886e47789a100845d5b784beb3c
diff --git a/lib/Renderscript/RSCompilerDriver.cpp b/lib/Renderscript/RSCompilerDriver.cpp
index fc69d50..efee72e 100644
--- a/lib/Renderscript/RSCompilerDriver.cpp
+++ b/lib/Renderscript/RSCompilerDriver.cpp
@@ -49,7 +49,7 @@
 
 using namespace bcc;
 
-RSCompilerDriver::RSCompilerDriver(bool pUseCompilerRT) :
+RSCompilerDriver::RSCompilerDriver() :
     mConfig(nullptr), mCompiler(), mDebugContext(false),
     mLinkRuntimeCallback(nullptr), mEnableGlobalMerge(true),
     mEmbedGlobalInfo(false), mEmbedGlobalInfoSkipConstant(false) {