Delete old x86 validator.

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

-@hex:
-  # Models a jump to the begining of an atomic instruction sequence.
-  # jmp 0x2
-  EB 00
-  # and %edx, 0xe0
-  83 e2 e0 \\
-  # add %rdx, %r15
-  4c 01 fa \\
-  # jmp %rdx
-  ff e2
-@val:
-  VALIDATOR: Checking jump targets: 0 to a
-  VALIDATOR: Checking that basic blocks are aligned
-  *** <input> is safe ***
-@rval:
-  VALIDATOR: Checking jump targets: 0 to a
-  VALIDATOR: Checking that basic blocks are aligned
-  *** <input> is safe ***
-@rvald:
-  VALIDATOR: Checking block alignment and jump targets: 0 to a
-  *** <input> is safe ***
-@vd-rval:
-  VALIDATOR: Checking jump targets: 0 to a
-  VALIDATOR: Checking that basic blocks are aligned
-  *** <input> is safe ***
-@dis:
-  0000000000000000: eb 00                                        jmp 0x2
-  0000000000000002: 83 e2 e0                                     and %edx, 0xe0
-  0000000000000005: 4c 01 fa                                     add %rdx, %r15
-  0000000000000008: ff e2                                        jmp %rdx
-@vdis:
-  0000000000000000: eb 00                                        [P] dontcarejump %rip (s), 0x2 (u)
-  0000000000000002: 83 e2 e0                                     and %edx, 0xe0
-  0000000000000005: 4c 01 fa                                     add %rdx, %r15
-  0000000000000008: ff e2                                        [P] dontcarejump %rip (s), %rdx (u)
-@rdfa_output:
-  return code: 0