mips, bpf: Fix Makefile that referenced a removed file

This patch removes a stale Makefile reference to the cBPF JIT that was
removed.

Fixes: ebcbacfa ("mips, bpf: Remove old BPF JIT implementations")
Signed-off-by: Johan Almbladh <johan.almbladh@anyfinetworks.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20211007142339.633899-1-johan.almbladh@anyfinetworks.com

arch/mips/net/Makefile

 # SPDX-License-Identifier: GPL-2.0-only
 # MIPS networking code
 
-obj-$(CONFIG_MIPS_CBPF_JIT) += bpf_jit.o bpf_jit_asm.o
 obj-$(CONFIG_MIPS_EBPF_JIT) += bpf_jit_comp.o
 
 ifeq ($(CONFIG_32BIT),y)