* config/m68k-emc.exp, lib/emc-support.exp,

	* config/m68k-emc.exp, lib/emc-support.exp,
	gdb.trace/gdb_c_test.c: Delete.
	* gdb.trace/actions.exp, gdb.trace/backtrace.exp, gdb.trace/circ.exp,
	gdb.trace/collection.exp, gdb.trace/deltrace.exp,
	gdb.trace/infotrace.exp, gdb.trace/limits.exp, gdb.trace/packetlen.exp,
	gdb.trace/passc-dyn.exp, gdb.trace/passcount.exp, gdb.trace/report.exp,
	gdb.trace/save-trace.exp, gdb.trace/tfind.exp, gdb.trace/tracecmd.exp,
	gdb.trace/while-dyn.exp, gdb.trace/while-stepping.exp: Remove special
	casing for m68k-*-elf.