[NFC][Support] Remove unused getLongestMatch from SpecialCaseList#167193

vitalybuka merged 10 commits intomainllvm/llvm-project:mainfrom

users/vitalybuka/spr/nfcsupport-remove-unused-getlongestmatch-from-specialcaselistllvm/llvm-project:users/vitalybuka/spr/nfcsupport-remove-unused-getlongestmatch-from-specialcaselistCopy head branch name to clipboard