Revert "[clang-format] Annotate ::operator and Foo::operator correctly" (#164670)
Reverts llvm/llvm-project#164048
This led to a regression in clang-format where a space gets added in
between the parameter type and `&`. For example, this
```
::test_anonymous::FunctionApplication& ::test_anonymous::FunctionApplication::operator=(const ::test_anonymous::FunctionApplication& other) noexcept {
```
becomes
```
::test_anonymous::FunctionApplication& ::test_anonymous::FunctionApplication::operator=(const ::test_anonymous::FunctionApplication & other) noexcept {
```