Remove unreached check from getFP64MadmExecSize()

Remove unreached check from getFP64MadmExecSize()

Author: fangliu2020

visa/HWCaps.inc

@@ -441,10 +441,7 @@ bool supportFloatOr64bRegioning() const {
 
 int getFP64MadmExecSize() const {
   auto plat = getPlatform();
-  if (supportNativeSIMD32()) {
-    return 32;
-  }
-  else if (plat >= Xe_PVC) {
+  if (plat >= Xe_PVC) {
     return 16;
   } else if (plat == Xe_XeHPSDV || plat == Xe_DG2 || plat == Xe_MTL ||
              plat == Xe_ARL) {