objtool: Remove superfluous global_noreturns entries

lbug_with_loc() no longer exists, and resume_play_dead() is static
(objtool only checks globals and weaks).

Reviewed-by: Miroslav Benes <mbenes@suse.cz>
Link: https://lore.kernel.org/r/2725d7f2ccc2361c6903de9ebaa2b5bb304f7ac2.1681853186.git.jpoimboe@kernel.org
Signed-off-by: Josh Poimboeuf <jpoimboe@kernel.org>