[msan] Remove redundant test

The test needs to control intercept_strcmp option.
It's already implemented as lit.test strcmp.c.

Author: vitalybuka

compiler-rt/lib/msan/tests/msan_test.cpp

@@ -587,20 +587,6 @@ LargeStruct LargeRetTest() {
   return res;
 }
 
-TEST(MemorySanitizer, strcmp) {
-  char s1[10];
-  char s2[10];
-  strncpy(s1, "foo", 10);
-  s2[0] = 'f';
-  s2[1] = 'n';
-  EXPECT_GT(strcmp(s1, s2), 0);
-  s2[1] = 'o';
-  int res;
-  EXPECT_UMR(res = strcmp(s1, s2));
-  EXPECT_NOT_POISONED(res);
-  EXPECT_EQ(strncmp(s1, s2, 1), 0);
-}
-
 TEST(MemorySanitizer, LargeRet) {
   LargeStruct a = LargeRetTest();
   EXPECT_POISONED(a.x[0]);