[Autobackout][FunctionalRegression]Revert of change: a7dbd47: Add support for bf8 ext

Add support for bf8 ext

Author: sys-igc

IGC/BiFModule/CMakeLists.txt

@@ -497,7 +497,6 @@ set(KHR_DEFINES ${KHR_DEFINES} "cl_intel_pvc_lsc_validation")
 set(KHR_DEFINES ${KHR_DEFINES} "cl_intel_subgroup_extended_block_read_cacheopts")
 set(KHR_DEFINES ${KHR_DEFINES} "cl_intel_subgroup_extended_block_write_cacheopts")
 set(KHR_DEFINES ${KHR_DEFINES} "cl_intel_subgroup_2d_block_io")
-set(KHR_DEFINES ${KHR_DEFINES} "cl_intel_subgroup_matrix_multiply_accumulate_bf8")
 
 igc_bif_build_bc(
     OUTPUT               "${IGC_BUILD__BIF_DIR}/IBiF_Impl_int.bc"