Revert "serial: 8250: Fix restoring termios speed after suspend"

This reverts commit 1007f1d1 which is
commit 379a33786d489ab81885ff0b3935cfeb36137fea upstream.

It breaks the build due to a dependant upstream patch being reverted
earlier in the Android tree because of ABI breakages and it not being
needed at all.  So it is safe to remove here as well.

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: Ibc77017d0655165eb6962bf722c7cbbd8cc17480