[spirv-reader] Remove infinite loop test.

Remove test which generates an infinite loop. Both branches of the loop
are marked as `unreachable` this means we end up generating an infinite
loop as there is no break.

Just remove the test case, if this is provided as input, then the input
should be fixed to remove the infinite loop.

Bug: 42250952
Change-Id: Ib0452530ff6a58860580b6e1cc97302cb0a48c8e
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/247495
Commit-Queue: David Neto <dneto@google.com>
Reviewed-by: David Neto <dneto@google.com>

test/tint/unittest/reader/SpvParserCFGTest_EmitBody_Unreachable_InsideLoop.spvasm

diff --git a/test/tint/unittest/reader/SpvParserCFGTest_EmitBody_Unreachable_InsideLoop.spvasm b/test/tint/unittest/reader/SpvParserCFGTest_EmitBody_Unreachable_InsideLoop.spvasm
deleted file mode 100644
index 8756f4a..0000000
--- a/test/tint/unittest/reader/SpvParserCFGTest_EmitBody_Unreachable_InsideLoop.spvasm
+++ /dev/null
@@ -1,55 +0,0 @@
-; Test: SpvParserCFGTest_EmitBody_Unreachable_InsideLoop.spvasm
-; SPIR-V
-; Version: 1.0
-; Generator: Khronos SPIR-V Tools Assembler; 0
-; Bound: 1000
-; Schema: 0
-OpCapability Shader
-OpMemoryModel Logical Simple
-OpEntryPoint Fragment %100 "main"
-OpExecutionMode %100 OriginUpperLeft
-OpName %var "var"
-%void = OpTypeVoid
-%3 = OpTypeFunction %void
-%bool = OpTypeBool
-%5 = OpConstantNull %bool
-%true = OpConstantTrue %bool
-%false = OpConstantFalse %bool
-%uint = OpTypeInt 32 0
-%int = OpTypeInt 32 1
-%uint_42 = OpConstant %uint 42
-%int_42 = OpConstant %int 42
-%13 = OpTypeFunction %uint
-%uint_0 = OpConstant %uint 0
-%uint_1 = OpConstant %uint 1
-%uint_2 = OpConstant %uint 2
-%uint_3 = OpConstant %uint 3
-%uint_4 = OpConstant %uint 4
-%uint_5 = OpConstant %uint 5
-%uint_6 = OpConstant %uint 6
-%uint_7 = OpConstant %uint 7
-%uint_8 = OpConstant %uint 8
-%uint_10 = OpConstant %uint 10
-%uint_20 = OpConstant %uint 20
-%uint_30 = OpConstant %uint 30
-%uint_40 = OpConstant %uint 40
-%uint_50 = OpConstant %uint 50
-%uint_90 = OpConstant %uint 90
-%uint_99 = OpConstant %uint 99
-%_ptr_Private_uint = OpTypePointer Private %uint
-%var = OpVariable %_ptr_Private_uint Private
-%uint_999 = OpConstant %uint 999
-%100 = OpFunction %void None %3
-%10 = OpLabel
-OpBranch %20
-%20 = OpLabel
-OpLoopMerge %99 %80 None
-OpBranchConditional %5 %30 %30
-%30 = OpLabel
-OpUnreachable
-%80 = OpLabel
-OpBranch %20
-%99 = OpLabel
-OpReturn
-OpFunctionEnd
-