PR 34481 arbitrary limit on decompressed size of .dwo files

int aaaa..a;  where 'a' is repeated a million times, produces a
-g -gsplit-dwarf -gz .dwo file of only 2200 bytes.  This might be a
silly testcase, but it demonstrates the ten times file size limit when
decompressing .debug_str.dwo is easily exceeded.

	PR 26946
	PR 28834
	PR 34481
bfd/
	* section.c (bfd_section_size_insane): Do not attempt to sanity
	check compressed sections.
binutils/
	* readelf.c (uncompress_section_contents): Do not limit uncompressed
	section size.  Remove now unused file_size param.  Adjust callers.