Revert "[AArch64] Add intrinsics for multi-vector FEAT_SVE_BFSCALE instructio…"

This reverts commit 8a09111.

Author: Lukacma

clang/include/clang/Basic/arm_sve.td

@@ -2082,13 +2082,6 @@ let SVETargetGuard = InvalidMode, SMETargetGuard = "sme2,sve-b16b16"in {
   defm SVBFMAXNM : BfSingleMultiVector<"maxnm">;
 }
 
-let SVETargetGuard = InvalidMode, SMETargetGuard = "sme2,sve-bfscale" in {
-  // BFMUL
-  defm SVBFMUL : BfSingleMultiVector<"mul">;
-  // BFSCALE
-  defm SVBFSCALE : BfSingleMultiVector<"scale">;
-}
-
 let SVETargetGuard = InvalidMode, SMETargetGuard = "sme2" in {
   // == ADD (vectors) ==
   def SVADD_SINGLE_X2 : SInst<"svadd[_single_{d}_x2]", "22d", "cUcsUsiUilUl", MergeNone, "aarch64_sve_add_single_x2", [IsStreaming], []>;

clang/test/CodeGen/AArch64/sme2-intrinsics/acle_sme2_bfmul.c

@@ -3627,10 +3627,10 @@ let TargetPrefix = "aarch64" in {
   }
 
   //
-  // Multi-vector floating point min/max number, scale, and multiply
+  // Multi-vector floating point min/max number
   //
 
-  foreach instr = ["fmaxnm", "fminnm", "fscale", "fmul"] in {
+  foreach instr = ["fmaxnm", "fminnm"] in {
     def int_aarch64_sve_ # instr # _single_x2 : SVE2_VG2_Multi_Single_Intrinsic;
     def int_aarch64_sve_ # instr # _single_x4 : SVE2_VG4_Multi_Single_Intrinsic;