MIPS: Fix comment typo

The double `it' is duplicated in the comment, remove one.
Signed-off-by: Jason Wang <wangborong@cdjrlc.com>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>

arch/mips/math-emu/cp1emu.c

@@ -1032,7 +1032,7 @@ static int cop1Emulate(struct pt_regs *xcp, struct mips_fpu_struct *ctx,
 	 */
 	if (dec_insn.micro_mips_mode) {
 		/*
-		 * If next instruction is a 16-bit instruction, then it
+		 * If next instruction is a 16-bit instruction, then
 		 * it cannot be a FPU instruction. This could happen
 		 * since we can be called for non-FPU instructions.
 		 */