[binutils-gdb] Revert: solib_global_lookup: Fetch arch from objfile.

[sergiodj+buildbot at redhat dot com]

*** TEST RESULTS FOR COMMIT 6f05925675b90983271289b782432b6297d26741 ***

Author: Ulrich Weigand <ulrich.weigand@de.ibm.com>
Branch: master
Commit: 6f05925675b90983271289b782432b6297d26741

Revert: solib_global_lookup: Fetch arch from objfile.

solib_ops are installed as a property of the inferior gdbarch,
so they need to be systematically looked up via that architecture,
not some objfile architecture.

ChangeLog:

	Revert:
	2014-11-06  Doug Evans  <xdje42@gmail.com>
        * solib.c (solib_global_lookup): Fetch arch from objfile,
        not target_gdbarch.