Remove MMU hacks

Unicorn has included some ugly hacks to provide a envirement where vaddr == paddr.
These hacks where to use the full 64 bit mappings on x86 without init the mmu
and some memory redirect for MIPS.

The UC_TLB_CPU mode defaults to vaddr == paddr, therfor these hacks aren't
required anymore.

qemu/target/arm/cpu.c

@@ -2080,7 +2080,6 @@ void arm_cpu_class_init(struct uc_struct *uc, CPUClass *oc)
     cc->get_phys_page_attrs_debug = arm_cpu_get_phys_page_attrs_debug;
     cc->asidx_from_attrs = arm_asidx_from_attrs;
     cc->tcg_initialize = arm_translate_init;
-    cc->tlb_fill = arm_cpu_tlb_fill;
     cc->tlb_fill_cpu = arm_cpu_tlb_fill;
     cc->debug_excp_handler = arm_debug_excp_handler;
     cc->do_unaligned_access = arm_cpu_do_unaligned_access;