SWDEV-375055 - Re-enable Comgr unbundler

With recent upstream changes (D145770), we can now use the
Comgr unbundler without requiring an env field in the supplied
targetID. For users, this is consistent with previous legacy
unbundler behavior.

Change-Id: I5f085b0fa1ad352bbbb282b75367c206b75f279f

rocclr/utils/flags.hpp

@@ -278,7 +278,7 @@ release(bool, ROC_SKIP_KERNEL_ARG_COPY, false,                                \
         "If true, then runtime can skip kernel arg copy")                     \
 release(bool, GPU_STREAMOPS_CP_WAIT, false,                                   \
         "Force the stream wait memory operation to wait on CP.")              \
-release(bool, HIP_USE_RUNTIME_UNBUNDLER, true,                                \
+release(bool, HIP_USE_RUNTIME_UNBUNDLER, false,                               \
         "Force this to use Runtime code object unbundler.")                   \
 release(bool, HIPRTC_USE_RUNTIME_UNBUNDLER, false,                            \
         "Set this to true to force runtime unbundler in hiprtc.")             \