Revert "Add SBValue::GetValueAsAddress API for removing non-addressing metadata"

Revert while I investigate two CI bot failures;
the more important is the lldb-arm-ubuntu where
the FixAddress is removing the 0th bit so we're
adding the `actual=` decorator on a string pointer,

```
Got output:
(char *) strptr = 0x00400817 (actual=0x400816) ptr = [{ },{H}]
```

in TestDataFormatterSmartArray.py line 229.

This reverts commit 4d635be2.