[committed] Remove std::type_info::operator!= for C++20

[Jonathan Wakely]

This is an even smaller part of P1614R2.

Tested powerpc64le-linux, committed to master.


-------------- next part --------------
A non-text attachment was scrubbed...
Name: patch.txt
Type: text/x-patch
Size: 853 bytes
Desc: not available
URL: <http://gcc.gnu.org/pipermail/gcc-patches/attachments/20200220/77a660bb/attachment.bin>