2013-07-22  Doug Evans  <dje@google.com>

gdb/
	* exec.h (remove_target_sections): Delete arg abfd.
	* exec.c (remove_target_sections): Delete arg abfd.
	(exec_close): Update call to remove_target_sections.
	* solib.c (update_solib_list): Ditto.
	(reload_shared_libraries_1): Ditto.
	(clear_solib): Ditto, and unconditionally call remove_target_sections.
Fix the following ChangeLog entry:

2013-07-22  Doug Evans  <dje@google.com>

gdb/
	* exec.h (remove_target_sections): Delete arg abfd.
	* exec.c (exec_close): Update call to remove_target_sections.
	(remove_target_sections): Delete arg abfd.
	* solib.c (update_solib_list): Ditto.
	(reload_shared_libraries_1): Ditto.
	(clear_solib): Ditto, and unconditionally call remove_target_sections.
	* target.h (struct target_section): Rename key to owner.
	All uses updated.