glibc: Drop patch to support/workaround prelinked apps on armv5

The usecase explained in bug #1443 works fine now a days on qemuarmv5,
tested by using lltng-ust and explicitly linking in liburcu-bp.so as
well, since its no more a direct dependency of liblttng-ust.so.1

Given that usecase works, unbolt this fix now.

Signed-off-by: Khem Raj <raj.khem@gmail.com>
Cc: Mark Hatle <mark.hatle@kernel.crashing.org>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>