[X86] Remove redundant static from constexpr. NFC

Author: phoebewang

llvm/lib/Support/X86TargetParser.cpp

@@ -581,8 +581,8 @@ constexpr FeatureBitset ImpliedFeaturesAMX_BF16 = FeatureAMX_TILE;
 constexpr FeatureBitset ImpliedFeaturesAMX_INT8 = FeatureAMX_TILE;
 constexpr FeatureBitset ImpliedFeaturesHRESET = {};
 
-static constexpr FeatureBitset ImpliedFeaturesPREFETCHI = {};
-static constexpr FeatureBitset ImpliedFeaturesAVX512FP16 =
+constexpr FeatureBitset ImpliedFeaturesPREFETCHI = {};
+constexpr FeatureBitset ImpliedFeaturesAVX512FP16 =
     FeatureAVX512BW | FeatureAVX512DQ | FeatureAVX512VL;
 // Key Locker Features
 constexpr FeatureBitset ImpliedFeaturesKL = FeatureSSE2;