Revert "[MIPS] Support FR=0 emulation on FR=1 64-bit FP registers"

This reverts commit d02ec08427.

Bug: http://b/22045439
Change-Id: Iaf10ff1e2948083cce0098f29d5b87b32bfae1b7

linker/linker.cpp

@@ -2875,12 +2875,6 @@ bool soinfo::prelink_image() {
     }
   }
 
-#if defined(__mips__) && !defined(__LP64__)
-  if (!mips_check_and_adjust_fp_modes()) {
-    return false;
-  }
-#endif
-
   DEBUG("si->base = %p, si->strtab = %p, si->symtab = %p",
         reinterpret_cast<void*>(base), strtab_, symtab_);