removed LLVM_HOME from hipcc

Change-Id: Ic3dfdde9d28f08bf54b12dfc38ab1f25884bcfab

bin/hipcc

@@ -103,7 +103,7 @@ if ($HIP_PLATFORM eq "hcc") {
 
     $HIPLDFLAGS = `${HCC_HOME}/bin/hcc-config --ldflags`;
 
-    $LLVM_HOME = "/opt/rocm/llvm";
+#    $LLVM_HOME = "/opt/rocm/llvm";
 
     #### GCC system includes workaround ####
     $HCC_WA_FLAGS = " ";