Remove test of undocumented format.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139955 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/MC/ARM/basic-thumb2-instructions.s b/test/MC/ARM/basic-thumb2-instructions.s
index 003a1b9..de63727 100644
--- a/test/MC/ARM/basic-thumb2-instructions.s
+++ b/test/MC/ARM/basic-thumb2-instructions.s
@@ -2189,15 +2189,6 @@
 
 
 @------------------------------------------------------------------------------
-@ STR(literal)
-@------------------------------------------------------------------------------
-        str.w r5, _foo
-
-@ CHECK: str.w	r5, _foo                @ encoding: [0xcf'A',0xf8'A',A,0x50'A']
-@ CHECK:    @   fixup A - offset: 0, value: _foo, kind: fixup_t2_ldst_pcrel_12
-
-
-@------------------------------------------------------------------------------
 @ STR(register)
 @------------------------------------------------------------------------------
         str r1, [r8, r1]