* gdb.base/a1-selftest.exp: Use send_gdb consistently. Don't

	* gdb.base/a1-selftest.exp: Use send_gdb consistently. Don't
	refer to gdb_spawn_id.

	* config/m32r-stub.exp: Remove references to gdb_spawn_id, no
	longer used.
	* config/sparclet.exp: Ditto.
	* config/sparclet-old.exp: Ditto.
	* config/slite.exp: Ditto.
	* config/sim.exp: Ditto.
	* gdb.base/funcargs.exp: Ditto.

	* lib/gdb.exp:Remove references to gdb_spawn_id.
	(gdb_expect): Move to remote.exp.