Remove hip-hcc codes: Part four

Remove __HCC__, __HCC_ONLY__, __HCC_CPP__, __HCC_C__,
__HCC_OR_HIP_CLANG__, __HIP_ROCclr__ and their guarded codes.

Remove Hcc codes from directed_tests and samples.

Remove __HIP_PLATFORM_HCC__ and __HIP_PLATFORM_NVCC__ from
some files where they are not necessary.

Add deprecation notice.

Change-Id: I1ae467eafd749d6c25bca204c1724b026be21fce

samples/1_Utils/hipInfo/hipInfo.cpp

@@ -48,9 +48,6 @@ THE SOFTWARE.
     }
 
 void printCompilerInfo() {
-#ifdef __HCC__
-    printf("compiler: hcc version=%s, workweek (YYWWD) = %u\n", __hcc_version__, __hcc_workweek__);
-#endif
 #ifdef __NVCC__
     printf("compiler: nvcc\n");
 #endif