make: Remove "Disables MAKEINFO due to texinfo 5.x compat issue with mak...

...e.texi:

Poky has a proper fix for this issue. This bbappend can be removed
Reverts : 6132aec9eec95a17f3774759773baf1ffc18ea4a

Signed-off-by: Abhijit Potnis <Abhijit_Potnis@mentor.com>