ipa: Fix CFG fix-up in IPA-CP transform phase (PR 103441)

ipa: Fix CFG fix-up in IPA-CP transform phase (PR 103441)

I forgot that IPA passes before ipa-inline must not return
TODO_cleanup_cfg from their transformation function because ordinary
CFG cleanup does not remove call graph edges associated with removed
call statements but must use
delete_unreachable_blocks_update_callgraph instead.  This patch fixes
that error.

gcc/ChangeLog:

2021-11-26  Martin Jambor  <mjambor@suse.cz>

	PR ipa/103441
	* ipa-prop.c (ipcp_transform_function): Call
	delete_unreachable_blocks_update_callgraph instead of returning
	TODO_cleanup_cfg.