Remove libhip_device.a static library

Move remaining function definitions from device_util.cpp to hip_runtime.h header. We can now remove the static library completely as device_util.cpp was the last file part of target hip::hip_device .

hipamd/bin/hipcc

@@ -719,9 +719,9 @@ if ($setStdLib eq 0 and $HIP_PLATFORM eq 'hcc')
 
 if ($needHipHcc) {
     if ($linkType eq 0) {
-        substr($HIPLDFLAGS,0,0) = "  $HIP_PATH/lib/libhip_hcc_static.a $HIP_PATH/lib/libhip_device.a " ;
+        substr($HIPLDFLAGS,0,0) = "  $HIP_PATH/lib/libhip_hcc_static.a " ;
     } else {
-        substr($HIPLDFLAGS,0,0) = "  -Wl,--rpath=$HIP_PATH/lib $HIP_PATH/lib/libhip_hcc.so $HIP_PATH/lib/libhip_device.a ";
+        substr($HIPLDFLAGS,0,0) = "  -Wl,--rpath=$HIP_PATH/lib $HIP_PATH/lib/libhip_hcc.so ";
     }
 }