[BOLT] Remove duplicate expression (llvm#80380)

Reported by cpp check static analyzer in llvm#80111.

Fixes llvm#80111.

bolt/lib/Target/X86/X86MCPlusBuilder.cpp

@@ -2197,7 +2197,7 @@ class X86MCPlusBuilder : public MCPlusBuilder {
               MO->BaseRegNum != X86::RIP && MO->BaseRegNum != X86::RBP &&
               MO->BaseRegNum != X86::NoRegister &&
               MO->IndexRegNum == X86::NoRegister &&
-              MO->SegRegNum == X86::NoRegister && MO->BaseRegNum != X86::RIP) {
+              MO->SegRegNum == X86::NoRegister) {
             VtableRegNum = MO->BaseRegNum;
             MethodOffset = MO->DispImm;
             MethodFetchInsns.push_back(&CurInst);