* config/tc-mips.c (RELAX_MICROMIPS_ENCODE): Remove forced 16-bit

	* config/tc-mips.c (RELAX_MICROMIPS_ENCODE): Remove forced 16-bit
	branch size information.
	(RELAX_MICROMIPS_U16BIT): Remove macro.
	(RELAX_MICROMIPS_UNCOND): Adjust accordingly.
	(RELAX_MICROMIPS_COMPACT, RELAX_MICROMIPS_LINK): Likewise.
	(RELAX_MICROMIPS_RELAX32): Likewise.
	(RELAX_MICROMIPS_TOOFAR16): Likewise.
	(RELAX_MICROMIPS_MARK_TOOFAR16): Likewise.
	(RELAX_MICROMIPS_CLEAR_TOOFAR16): Likewise.
	(RELAX_MICROMIPS_TOOFAR32): Likewise.
	(RELAX_MICROMIPS_MARK_TOOFAR32): Likewise.
	(RELAX_MICROMIPS_CLEAR_TOOFAR32): Likewise.
	(append_insn): Always check forced_insn_length for microMIPS
	relaxation.  Adjust code for the removal of
	RELAX_MICROMIPS_U16BIT.
	(mips_ip) <'D', 'E'>: If forced_insn_length, then emit the
	relocation straight away.
	(relaxed_micromips_16bit_branch_length): Adjust code for the
	removal of RELAX_MICROMIPS_U16BIT.