Remove BRIG front-end.

gcc/ada/ChangeLog:

	* gcc-interface/ada-tree.h (BUILT_IN_LIKELY): Use builtins
	from COROUTINES.
	(BUILT_IN_UNLIKELY): Likewise.

gcc/ChangeLog:

	* builtins.def (DEF_HSAIL_BUILTIN): Remove.
	(DEF_HSAIL_ATOMIC_BUILTIN): Likewise.
	(DEF_HSAIL_SAT_BUILTIN): Likewise.
	(DEF_HSAIL_INTR_BUILTIN): Likewise.
	(DEF_HSAIL_CVT_ZEROI_SAT_BUILTIN): Likewise.
	* doc/frontends.texi: Remove BRIG.
	* doc/install.texi: Likewise.
	* doc/invoke.texi: Likewise.
	* doc/standards.texi: Likewise.
	* brig-builtins.def: Removed.
	* brig/ChangeLog: Removed.
	* brig/Make-lang.in: Removed.
	* brig/brig-builtins.h: Removed.
	* brig/brig-c.h: Removed.
	* brig/brig-lang.c: Removed.
	* brig/brigfrontend/brig-arg-block-handler.cc: Removed.
	* brig/brigfrontend/brig-atomic-inst-handler.cc: Removed.
	* brig/brigfrontend/brig-basic-inst-handler.cc: Removed.
	* brig/brigfrontend/brig-branch-inst-handler.cc: Removed.
	* brig/brigfrontend/brig-cmp-inst-handler.cc: Removed.
	* brig/brigfrontend/brig-code-entry-handler.cc: Removed.
	* brig/brigfrontend/brig-code-entry-handler.h: Removed.
	* brig/brigfrontend/brig-comment-handler.cc: Removed.
	* brig/brigfrontend/brig-control-handler.cc: Removed.
	* brig/brigfrontend/brig-copy-move-inst-handler.cc: Removed.
	* brig/brigfrontend/brig-cvt-inst-handler.cc: Removed.
	* brig/brigfrontend/brig-fbarrier-handler.cc: Removed.
	* brig/brigfrontend/brig-function-handler.cc: Removed.
	* brig/brigfrontend/brig-function.cc: Removed.
	* brig/brigfrontend/brig-function.h: Removed.
	* brig/brigfrontend/brig-inst-mod-handler.cc: Removed.
	* brig/brigfrontend/brig-label-handler.cc: Removed.
	* brig/brigfrontend/brig-lane-inst-handler.cc: Removed.
	* brig/brigfrontend/brig-machine.c: Removed.
	* brig/brigfrontend/brig-machine.h: Removed.
	* brig/brigfrontend/brig-mem-inst-handler.cc: Removed.
	* brig/brigfrontend/brig-module-handler.cc: Removed.
	* brig/brigfrontend/brig-queue-inst-handler.cc: Removed.
	* brig/brigfrontend/brig-seg-inst-handler.cc: Removed.
	* brig/brigfrontend/brig-signal-inst-handler.cc: Removed.
	* brig/brigfrontend/brig-to-generic.cc: Removed.
	* brig/brigfrontend/brig-to-generic.h: Removed.
	* brig/brigfrontend/brig-util.cc: Removed.
	* brig/brigfrontend/brig-util.h: Removed.
	* brig/brigfrontend/brig-variable-handler.cc: Removed.
	* brig/brigfrontend/hsa-brig-format.h: Removed.
	* brig/brigfrontend/phsa.h: Removed.
	* brig/brigspec.c: Removed.
	* brig/config-lang.in: Removed.
	* brig/gccbrig.texi: Removed.
	* brig/lang-specs.h: Removed.
	* brig/lang.opt: Removed.

gcc/testsuite/ChangeLog:

	* gfortran.dg/goacc/pr78027.f90: Remove -Wno-hsa option.
	* brig.dg/README: Removed.
	* brig.dg/dg.exp: Removed.
	* brig.dg/test/gimple/alloca.hsail: Removed.
	* brig.dg/test/gimple/atomics.hsail: Removed.
	* brig.dg/test/gimple/branches.hsail: Removed.
	* brig.dg/test/gimple/fbarrier.hsail: Removed.
	* brig.dg/test/gimple/function_calls.hsail: Removed.
	* brig.dg/test/gimple/internal-casts.hsail: Removed.
	* brig.dg/test/gimple/kernarg.hsail: Removed.
	* brig.dg/test/gimple/mem.hsail: Removed.
	* brig.dg/test/gimple/mulhi.hsail: Removed.
	* brig.dg/test/gimple/packed.hsail: Removed.
	* brig.dg/test/gimple/priv-array-offset-access.hsail: Removed.
	* brig.dg/test/gimple/smoke_test.hsail: Removed.
	* brig.dg/test/gimple/variables.hsail: Removed.
	* brig.dg/test/gimple/vector.hsail: Removed.
	* lib/brig-dg.exp: Removed.
	* lib/brig.exp: Removed.