Delete old x86 validator.

src/trusted/validator_x86/testdata/64/maskmov_test.test

-@hex:
-  # Show that we handle the expected sandboxing instructions for maskmov.
-  
-  # Case one: correct masking of segment DS:%rsi
-  # mov %edi, %edi
-  89 ff
-  # lea (%r15, %rdi), %rdi
-  49 8d 3c 3f
-  # maskmovq %mm1, %mm2
-  0f f7 d1
-  
-  # Case two: incorrect masking of segment DS:%rsi
-  # add %edi, %edi
-  01 ff
-  # lea (%r15, %rdi), %rdi
-  49 8d 3c 3f
-  # maskmovq %mm1, %mm2
-  0f f7 d1
-  
-  # Maskmovdqu is also fine
-  # mov %edi, %edi
-  89 ff
-  # lea (%r15, %rdi), %rdi
-  49 8d 3c 3f
-  # maskmovdqu %xmm1, %xmm2
-  66 0f f7 d1
-  
-  90 90 90 90
-  
-  # But vmaskmovdqu is not
-  #   mov %edi, %edi
-  #   lea (%r15, %rdi), %rdi
-  #   vmaskmovdqu %xmm1, %xmm2
-  # (machine code is written in one line to avoid spurious errors caused
-  # by nop patching)
-  89 ff  49 8d 3c 3f  c5 f9 f7 d1
-@rval:
-  VALIDATOR: 000000000000000f: 0f f7 d1                                     maskmovq %mmx2, %mmx1
-  VALIDATOR: ERROR: Segment memory reference not allowed
-  VALIDATOR: 0000000000000026: c5                                           invalid
-  VALIDATOR: ERROR: This instruction has been marked illegal by Native Client
-  VALIDATOR: 0000000000000026: c5                                           invalid
-  VALIDATOR: ERROR: Opcode sequence doesn't define a valid x86 instruction
-  VALIDATOR: Checking jump targets: 0 to 2a
-  VALIDATOR: Checking that basic blocks are aligned
-  *** <input> IS UNSAFE ***
-@dis:
-  0000000000000000: 89 ff                                        mov %edi, %edi
-  0000000000000002: 49 8d 3c 3f                                  lea %rdi, [%r15+%rdi*1]
-  0000000000000006: 0f f7 d1                                     maskmovq %mmx2, %mmx1
-  0000000000000009: 01 ff                                        add %edi, %edi
-  000000000000000b: 49 8d 3c 3f                                  lea %rdi, [%r15+%rdi*1]
-  000000000000000f: 0f f7 d1                                     maskmovq %mmx2, %mmx1
-  0000000000000012: 89 ff                                        mov %edi, %edi
-  0000000000000014: 49 8d 3c 3f                                  lea %rdi, [%r15+%rdi*1]
-  0000000000000018: 66 0f f7 d1                                  maskmovdqu %xmm2, %xmm1
-  000000000000001c: 90                                           nop
-  000000000000001d: 90                                           nop
-  000000000000001e: 90                                           nop
-  000000000000001f: 90                                           nop
-  0000000000000020: 89 ff                                        mov %edi, %edi
-  0000000000000022: 49 8d 3c 3f                                  lea %rdi, [%r15+%rdi*1]
-  0000000000000026: c5                                           invalid
-  0000000000000027: f9                                           stc
-  0000000000000028: f7 d1                                        not %ecx
-@rdfa_output:
-  f: [0] unrecognized instruction
-  20: [0] unrecognized instruction
-  return code: 1
-@validators_disagree:
-  RDFA validator recognizes vmackmovdqu in the triple
-    mov %edi, %edi
-    lea (%r15, %rdi), %rdi
-    vmaskmovdqu %xmm1, %xmm2
-  and then rejects it, so error message points at the beginning of the triple.
-  
-  errors reported by old validator but not by rdfa one:
-    0x26
-  errors reported by rdfa validator but not by old one:
-    0x20