Subzero: Delete szdiff.py tests and ERRORS tests.

tests_lit/llvm2ice_tests/vector-icmp.ll

 ; This file checks support for comparing vector values with the icmp
 ; instruction.
 
 ; RUN: %p2i -i %s --args -O2 --verbose none \
 ; RUN:   | llvm-mc -triple=i686-none-nacl -filetype=obj \
 ; RUN:   | llvm-objdump -d --symbolize -x86-asm-syntax=intel - | FileCheck %s
 ; RUN: %p2i -i %s --args -Om1 --verbose none \
 ; RUN:   | llvm-mc -triple=i686-none-nacl -filetype=obj \
 ; RUN:   | llvm-objdump -d --symbolize -x86-asm-syntax=intel - | FileCheck %s
-; RUN: %p2i -i %s --args --verbose none | FileCheck --check-prefix=ERRORS %s
-; RUN: %p2i -i %s --insts | %szdiff %s | FileCheck --check-prefix=DUMP %s
 
 ; Check that sext elimination occurs when the result of the comparison
 ; instruction is alrady sign extended.  Sign extension to 4 x i32 uses
 ; the pslld instruction.
 define <4 x i32> @test_sext_elimination(<4 x i32> %a, <4 x i32> %b) {
 entry:
   %res.trunc = icmp eq <4 x i32> %a, %b
   %res = sext <4 x i1> %res.trunc to <4 x i32>
   ret <4 x i32> %res
 ; CHECK-LABEL: test_sext_elimination:
@@ skipping 472 matching lines @@
 }
 
 define <16 x i1> @test_icmp_v16i1_ult(<16 x i1> %a, <16 x i1> %b) {
 entry:
   %res = icmp ult <16 x i1> %a, %b
   ret <16 x i1> %res
 ; CHECK-LABEL: test_icmp_v16i1_ult:
 ; CHECK: pxor
 ; CHECK: pcmpgtb
 }
-
-; ERRORS-NOT: ICE translation error
-; DUMP-NOT: SZ