pycompat: remove large Python 2 block
We no longer support Python 2. So we can delete its compatibility
code and remove the conditional and dedent the Python 3 code.
In order to make the linter happy, we had to inline imports in the
stanza at the top of the file.
Differential Revision: https://phab.mercurial-scm.org/D12250
from typing import (
List,
Tuple,
)
version: int
def bdiff(a: bytes, b: bytes): bytes
def blocks(a: bytes, b: bytes) -> List[Tuple[int, int, int, int]]: ...
def fixws(s: bytes, allws: bool) -> bytes: ...
def splitnewlines(text: bytes) -> List[bytes]: ...
def xdiffblocks(a: bytes, b: bytes) -> List[Tuple[int, int, int, int]]: ...