gccrs: borrowck: Remove block braces to satisfy GNU style

gccrs: borrowck: Remove block braces to satisfy GNU style

gcc/rust/ChangeLog:

	* checks/errors/borrowck/rust-bir-dump.cc (renumber_places):
	Remove unecessary braces.
	(Dump::go): Remove unecessary braces.
	(Dump::visit): Remove unecessary braces.
	(Dump::visit_scope): Remove unecessary braces.
	* checks/errors/borrowck/rust-bir-fact-collector.h (class FactCollector):
	Remove unecessary braces.
	(points): Remove unecessary braces.
	* checks/errors/borrowck/rust-bir-free-region.h: Remove unecessary braces.
	* checks/errors/borrowck/rust-bir-place.h: Remove unecessary braces.
	* checks/errors/borrowck/rust-borrow-checker.cc (BorrowChecker::go):
	Remove unecessary braces.
	* checks/errors/borrowck/rust-function-collector.h: Remove unecessary braces.

Signed-off-by: Jakub Dupak <dev@jakubdupak.com>