* breakpoint.h (enum bptype): Delete bp_catch_exec.
* breakpoint.c (insert_catchpoint): Remove handling for
bp_catch_exec breakpoint kinds.
(insert_bp_location, update_breakpoints_after_exec, remove_breakpoint)
(ep_is_catchpoint, print_it_typical, bpstat_check_location),
(bpstat_check_location, bpstat_what, print_one_breakpoint_location)
(print_one_breakpoint_location, user_settable_breakpoint)
(breakpoint_address_is_meaningful, adjust_breakpoint_address)
(allocate_bp_location, mention, breakpoint_re_set_one)
(disable_command, enable_command): Likewise.
(create_exec_event_catchpoint): Delete.
(insert_catch_exec, remove_catch_exec, breakpoint_hit_catch_exec)
(print_it_catch_exec, print_one_catch_exec, print_mention_catch_exec):
New functions.
(catch_exec_breakpoint_ops): New static global.
(catch_exec_command_1): Use create_catchpoint instead of
create_exec_event_catchpoint to create the exec catchpoint.