gdb/

gdb/

	* i386-tdep.c (i386_in_stack_tramp_p): Remove unused
	parameter 'gdbarch'.
	(i386_stack_tramp_frame_sniffer): Caller update.
	* i386-linux-tdep.c (i386_linux_core_read_xcr0): Remove
	parameter 'gdbarch' and 'target'.
	(i386_linux_core_read_description): Caller update.
	* amd64-linux-tdep.c (amd64_linux_core_read_description):
	Likewise.
	* i386-linux-tdep.h (i386_linux_core_read_xcr0): Update
	declaration.