Delete old x86 validator.

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

-@hex:
-  # Test that we don't accept "mov %ebp, %r11d" if not followed by an "add %rbp %r15"
-  44 89 dd
-  
-@val:
-  VALIDATOR: 0000000000000000: 44 89 dd                                     mov %ebp, %r11d
-  VALIDATOR: ERROR: Illegal assignment to EBP
-  VALIDATOR: Checking jump targets: 0 to 3
-  VALIDATOR: Checking that basic blocks are aligned
-  *** <input> IS UNSAFE ***
-@rval:
-  VALIDATOR: 0000000000000000: 44 89 dd                                     mov %ebp, %r11d
-  VALIDATOR: ERROR: Illegal assignment to EBP
-  VALIDATOR: Checking jump targets: 0 to 3
-  VALIDATOR: Checking that basic blocks are aligned
-  *** <input> IS UNSAFE ***
-@rvald:
-  VALIDATOR: 0000000000000000: 44 89 dd                                     mov %ebp, %r11d
-  VALIDATOR: ERROR: Illegal assignment to EBP
-  VALIDATOR: Checking block alignment and jump targets: 0 to 3
-  *** <input> IS UNSAFE ***
-@vd-rval:
-  VALIDATOR: 0000000000000000: 44 89 dd                                     mov %ebp, %r11d
-  VALIDATOR: ERROR: Illegal assignment to EBP
-  VALIDATOR: Checking jump targets: 0 to 3
-  VALIDATOR: Checking that basic blocks are aligned
-  *** <input> IS UNSAFE ***
-@dis:
-  0000000000000000: 44 89 dd                                     mov %ebp, %r11d
-@vdis:
-  0000000000000000: 44 89 dd                                     mov %ebp, %r11d
-@rdfa_output:
-  3: [0] improper %rbp sandboxing
-  return code: 1
-@validators_disagree:
-  Same problem reported in different ways.
-  errors reported by old validator but not by rdfa one:
-    0x0
-  errors reported by rdfa validator but not by old one:
-    0x3