Subzero, MIPS32: Remove --skip-unimplemented from lit tests

tests_lit/llvm2ice_tests/vector-align.ll

 ; This test checks that when SSE instructions access memory and require full
 ; alignment, memory operands are limited to properly aligned stack operands.
 ; This would only happen when we fuse a load instruction with another
 ; instruction, which currently only happens with non-scalarized Arithmetic
 ; instructions.
 
 ; RUN: %p2i -i %s --filetype=obj --disassemble --args -O2  | FileCheck %s
 ; RUN: %p2i -i %s --filetype=obj --disassemble --args -Om1 | FileCheck %s
 
 ; RUN: %if --need=target_MIPS32 --need=allow_dump \
 ; RUN:   --command %p2i --filetype=asm --assemble --disassemble --target mips32\
-; RUN:   -i %s --args -O2 --skip-unimplemented \
+; RUN:   -i %s --args -O2 \
 ; RUN:   | %if --need=target_MIPS32 --need=allow_dump \
 ; RUN:   --command FileCheck --check-prefix MIPS32 %s
 
 define internal <4 x i32> @test_add(i32 %addr_i, <4 x i32> %addend) {
 entry:
   %addr = inttoptr i32 %addr_i to <4 x i32>*
   %loaded = load <4 x i32>, <4 x i32>* %addr, align 4
   %result = add <4 x i32> %addend, %loaded
   ret <4 x i32> %result
 }
@@ skipping 101 matching lines @@
 }
 ; CHECK-LABEL: test_fsub
 ; CHECK-NOT: subps xmm{{.}},XMMWORD PTR [e{{ax|cx|dx|di|si|bx|bp}}
 ; CHECK: subps xmm{{.}},
 
 ; MIPS32-LABEL: test_fsub
 ; MIPS32: sub.s
 ; MIPS32: sub.s
 ; MIPS32: sub.s
 ; MIPS32: sub.s