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/tricore/cpu.c

@@ -137,7 +137,6 @@ static void tricore_cpu_class_init(CPUClass *c)
     cc->synchronize_from_tb = tricore_cpu_synchronize_from_tb;
     cc->get_phys_page_debug = tricore_cpu_get_phys_page_debug;
 
-    cc->tlb_fill = tricore_cpu_tlb_fill;
     cc->tlb_fill_cpu = tricore_cpu_tlb_fill;
     cc->tcg_initialize = tricore_tcg_init;
 }