diff --git a/IGC/common/igc_flags.h b/IGC/common/igc_flags.h
index 505c8b36848d..37895440d56c 100644
--- a/IGC/common/igc_flags.h
+++ b/IGC/common/igc_flags.h
@@ -76,8 +76,6 @@ DECLARE_IGC_REGKEY(bool, EnableIGASWSB,                 false,  "Use IGA for SWS
 DECLARE_IGC_REGKEY(bool, EnableSWSBStitch,              false,  "Insert dependence resolve for kernel stitching", true)
 DECLARE_IGC_REGKEY(bool, DisableRegDistDep,             false,  "distable regDist dependence", true)
 DECLARE_IGC_REGKEY(bool, EnableQuickTokenAlloc,         false,  "Insert dependence resolve for kernel stitching", true)
-DECLARE_IGC_REGKEY(bool, EnableGatherWithImmPreRA,           false,  "enable gather send with immediate", true)
-DECLARE_IGC_REGKEY(bool, EnableGatherWithImmPostRA,          false,  "enable gather send with immediate post RA", true)
 DECLARE_IGC_REGKEY(bool, SetA0toTdrForSendc,            false,  "Set A0 to tdr0 before each sendc/sendsc", true)
 DECLARE_IGC_REGKEY(bool, ReplaceIndirectCallWithJmpi,   false,  "Replace indirect call with jmpi instruction (HW WA)", true)
 DECLARE_IGC_REGKEY(bool, ForceUniformSurfaceSampler,    false,  "Force surface and sampler operand to be uniform", false)