Expand tiny misleadingly named 'registerOpenCLKernel' at its only call site

The function did not register any OpenCL kernel;)

Change-Id: Iebba89bc39d3035ff0d39d9cfa8ec72d4ebf217a

sc/source/core/inc/openclwrapper.hxx

@@ -75,7 +75,6 @@ public:
     static bool bIsInited;
     static OString maCacheFolder;
 
-    static void registerOpenCLKernel();
     static bool initOpenCLRunEnv( GPUEnv *gpu );
     static void releaseOpenCLEnv( GPUEnv *gpuInfo );
     static bool initOpenCLRunEnv( int argc );

sc/source/core/opencl/openclwrapper.cxx

@@ -81,12 +81,6 @@ OString getCacheFolder()
 
 OString OpenCLDevice::maCacheFolder = getCacheFolder();
 
-void OpenCLDevice::registerOpenCLKernel()
-{
-    if ( !gpuEnv.mnIsUserCreated )
-        memset( &gpuEnv, 0, sizeof(gpuEnv) );
-}
-
 void OpenCLDevice::setKernelEnv( KernelEnv *envInfo )
 {
     envInfo->mpkContext = gpuEnv.mpContext;
@@ -437,7 +431,9 @@ bool OpenCLDevice::initOpenCLRunEnv( int argc )
 
     if ( !bIsInited )
     {
-        registerOpenCLKernel();
+        if ( !gpuEnv.mnIsUserCreated )
+            memset( &gpuEnv, 0, sizeof(gpuEnv) );
+
         //initialize devices, context, command_queue
         bool status = initOpenCLRunEnv( &gpuEnv );
         if ( status )