Subzero: Delete szdiff.py tests and ERRORS tests.

tests_lit/llvm2ice_tests/vector-select.ll

Index: tests_lit/llvm2ice_tests/vector-select.ll
diff --git a/tests_lit/llvm2ice_tests/vector-select.ll b/tests_lit/llvm2ice_tests/vector-select.ll
index 11af5fa5ef077901bc62059a74a9687f09b1196d..7596c2a47e67d00358010946a4b36961ad238eca 100644
--- a/tests_lit/llvm2ice_tests/vector-select.ll
+++ b/tests_lit/llvm2ice_tests/vector-select.ll
@@ -14,8 +14,6 @@
 ; RUN:   | llvm-mc -triple=i686-none-nacl -filetype=obj \
 ; RUN:   | llvm-objdump -d --symbolize -x86-asm-syntax=intel - \
 ; RUN:   | FileCheck --check-prefix=SSE41 %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
 
 define <16 x i8> @test_select_v16i8(<16 x i1> %cond, <16 x i8> %arg1, <16 x i8> %arg2) {
 entry:
@@ -110,6 +108,3 @@ entry:
 ; SSE41: pslld xmm0, 31
 ; SSE41: blendvps xmm{{[0-7]}}, {{xmm[0-7]|xmmword}}
 }
-
-; ERRORS-NOT: ICE translation error
-; DUMP-NOT: SZ