E2fsprogs: Drop obsoleted patches.

* New release fixed the return value issue.

Closes #21016.

Signed-off-by: Adam Vandenberg <flangy@gmail.com>
re2c 0.13.6

Closes #21027.

Signed-off-by: Adam Vandenberg <flangy@gmail.com>
Merge libpurple into finch

Closes #20993.
Closes #17487.