Remove duplicate combines

Author: Pierre-vh

llvm/lib/Target/AMDGPU/AMDGPUCombine.td

@@ -205,10 +205,9 @@ def AMDGPUPostLegalizerCombiner: GICombiner<
 
 def AMDGPURegBankCombiner : GICombiner<
   "AMDGPURegBankCombinerImpl",
-  [unmerge_merge, unmerge_cst, unmerge_undef,
-   zext_trunc_fold, int_minmax_to_med3, ptr_add_immed_chain,
-   fp_minmax_to_clamp, fp_minmax_to_med3, fmed3_intrinsic_to_clamp,
-   identity_combines, redundant_and, constant_fold_cast_op,
+  [unmerge_merge, unmerge_cst, unmerge_undef, int_minmax_to_med3,
+   ptr_add_immed_chain, fp_minmax_to_clamp, fp_minmax_to_med3,
+   fmed3_intrinsic_to_clamp, identity_combines, constant_fold_cast_op,
    cast_of_cast_combines, sext_trunc, zext_of_shift_amount_combines,
    lower_uniform_sbfx, lower_uniform_ubfx, form_bitfield_extract,
    known_bits_simplifications]> {