Coverity: CID 610-DEAD CODE 611-UNUSED VALUE

Coverity: CID 610-DEAD CODE 611-UNUSED VALUE

	* lib-src/etags.c (process_file_name): compr was not being used
	before anyway so just remove the assignment from the if statement.

	* lib-src/etags.c (process_file_name): only make compressed_value
	NULL if it was previously not null. But still free it. This means
	that after the free we CANNOT dereference it.

Signed-off-by: Nelson Ferreira <nelson.ferreira@ieee.org>