Delete old x86 validator.

src/trusted/validator_x86/testdata/32/branch-middle.test

-@hex:
-  # Tests whether we note a branch into the middle of a nacl pattern.
-  7e 03
-  83 e0 e0
-  ff d0
-@nval:
-  VALIDATOR: 5: Bad jump target
-  *** <input> IS UNSAFE ***
-@nvals:
-  VALIDATOR: 5: Bad jump target
-  *** <input> IS UNSAFE ***
-  
-  Opcode Histogram;
-  1     0x7e    1       0x83    1       0xff    
-  Analysis Summary:
-  3 Checked instructions
-  3 checked jump targets
-  1 calls/jumps need dynamic checking (33.33%)
-  
-  Problems:
-  0 illegal instructions
-  1 bad jump targets
-  0 illegal unprotected indirect jumps (including ret)
-  0 instruction alignment defects
-  0 segmentation errors
-  0 bad prefix
-  0 bad instruction length
-  0 internal errors
-@nvalds:
-  VALIDATOR: 0: Jumps into middle of nacl pattern
-  *** <input> IS UNSAFE ***
-  
-  Opcode Histogram;
-  1     0x7e    1       0x83    1       0xff    
-  Analysis Summary:
-  3 Checked instructions
-  2 checked jump targets
-  1 calls/jumps need dynamic checking (33.33%)
-  
-  Problems:
-  0 illegal instructions
-  1 bad jump targets
-  0 illegal unprotected indirect jumps (including ret)
-  0 instruction alignment defects
-  0 segmentation errors
-  0 bad prefix
-  0 bad instruction length
-  0 internal errors
-@dis:
-  00000000: 7e 03                                        jle 0x5
-  00000002: 83 e0 e0                                     and %eax, 0xe0
-  00000005: ff d0                                        call %eax
-@vdis:
-   0:   7e 03                   jle 0x5
-   2:   83 e0 e0                and %esp, 0xffffffffffffffe0
-   5:   ff d0                   call * %edx
-@rdfa_output:
-  0: [0] bad jump target
-  return code: 1
-@validators_disagree:
-  Because rdfaval reported jump location, not target.