[gcc(refs/users/meissner/heads/work176-vpair)] Revert changes

https://gcc.gnu.org/g:528b36dade23b80f8021a0701d238ad971ff033c commit 528b36dade23b80f8021a0701d238ad971ff033c Author: Michael Meissner Date: Tue Aug 20 12:54:57 2024 -0400 Revert changes Diff: --- gcc/config/rs6000/rs6000-builtins.def | 10 gcc/config/rs6000/vector-pair.md |

[gcc(refs/users/meissner/heads/work176-vpair)] Revert changes

https://gcc.gnu.org/g:0b7aaee1ce5fa2f2f5f2239450eb128dd6d2b2e5 commit 0b7aaee1ce5fa2f2f5f2239450eb128dd6d2b2e5 Author: Michael Meissner Date: Tue Aug 20 12:46:42 2024 -0400 Revert changes Diff: --- gcc/config/rs6000/rs6000-builtins.def | 10 - gcc/config/rs6000/vector-pair.m