clang-plugin: Remove system include from auto_raw_pointer test.

tools/clang/plugins/tests/auto_raw_pointer.txt

-auto_raw_pointer.cpp:22:3: warning: [chromium-style] auto variable type must not deduce to a raw pointer type.
+auto_raw_pointer.cpp:20:3: warning: [chromium-style] auto variable type must not deduce to a raw pointer type.
   auto raw_int_ptr = &integer;
   ^~~~
   auto*
-auto_raw_pointer.cpp:23:3: warning: [chromium-style] auto variable type must not deduce to a raw pointer type.
+auto_raw_pointer.cpp:21:3: warning: [chromium-style] auto variable type must not deduce to a raw pointer type.
   const auto const_raw_int_ptr = &integer;
   ^~~~~~~~~~
   auto* const
-auto_raw_pointer.cpp:24:3: warning: [chromium-style] auto variable type must not deduce to a raw pointer type.
+auto_raw_pointer.cpp:22:3: warning: [chromium-style] auto variable type must not deduce to a raw pointer type.
   const auto& const_raw_int_ptr_ref = &integer;
   ^~~~~~~~~~~
   auto* const
-auto_raw_pointer.cpp:29:3: warning: [chromium-style] auto variable type must not deduce to a raw pointer type.
+auto_raw_pointer.cpp:27:3: warning: [chromium-style] auto variable type must not deduce to a raw pointer type.
   auto raw_foo_ptr = &foo;
   ^~~~
   auto*
-auto_raw_pointer.cpp:30:3: warning: [chromium-style] auto variable type must not deduce to a raw pointer type.
+auto_raw_pointer.cpp:28:3: warning: [chromium-style] auto variable type must not deduce to a raw pointer type.
   const auto const_raw_foo_ptr = &foo;
   ^~~~~~~~~~
   auto* const
-auto_raw_pointer.cpp:31:3: warning: [chromium-style] auto variable type must not deduce to a raw pointer type.
+auto_raw_pointer.cpp:29:3: warning: [chromium-style] auto variable type must not deduce to a raw pointer type.
   const auto& const_raw_foo_ptr_ref = &foo;
   ^~~~~~~~~~~
   auto* const
-auto_raw_pointer.cpp:38:3: warning: [chromium-style] auto variable type must not deduce to a raw pointer type.
+auto_raw_pointer.cpp:36:3: warning: [chromium-style] auto variable type must not deduce to a raw pointer type.
   auto double_ptr_auto = &int_ptr;
   ^~~~
   auto**
-auto_raw_pointer.cpp:39:3: warning: [chromium-style] auto variable type must not deduce to a raw pointer type.
+auto_raw_pointer.cpp:37:3: warning: [chromium-style] auto variable type must not deduce to a raw pointer type.
   auto* double_ptr_auto_ptr = &int_ptr;
   ^~~~~
   auto**
-auto_raw_pointer.cpp:46:3: warning: [chromium-style] auto variable type must not deduce to a raw pointer type.
+auto_raw_pointer.cpp:44:3: warning: [chromium-style] auto variable type must not deduce to a raw pointer type.
   auto auto_awesome = pointer_awesomeness;
   ^~~~
   auto* const* const volatile** const*
-auto_raw_pointer.cpp:48:3: warning: [chromium-style] auto variable type must not deduce to a raw pointer type.
+auto_raw_pointer.cpp:46:3: warning: [chromium-style] auto variable type must not deduce to a raw pointer type.
   auto& int_ptr_ref = int_ptr;
   ^~~~~
   auto*&
-auto_raw_pointer.cpp:49:3: warning: [chromium-style] auto variable type must not deduce to a raw pointer type.
+auto_raw_pointer.cpp:47:3: warning: [chromium-style] auto variable type must not deduce to a raw pointer type.
   const auto& const_int_ptr_ref = int_ptr;
   ^~~~~~~~~~~
   auto* const
-auto_raw_pointer.cpp:50:3: warning: [chromium-style] auto variable type must not deduce to a raw pointer type.
-  auto&& int_ptr_rref = std::move(int_ptr);
+auto_raw_pointer.cpp:48:3: warning: [chromium-style] auto variable type must not deduce to a raw pointer type.
+  auto&& int_ptr_rref = static_cast<int*&&>(int_ptr);
   ^~~~~~
   auto*&&
-auto_raw_pointer.cpp:51:3: warning: [chromium-style] auto variable type must not deduce to a raw pointer type.
-  const auto&& const_int_ptr_rref = std::move(int_ptr);
+auto_raw_pointer.cpp:49:3: warning: [chromium-style] auto variable type must not deduce to a raw pointer type.
+  const auto&& const_int_ptr_rref = static_cast<int*&&>(int_ptr);
   ^~~~~~~~~~~~
   auto* const
 13 warnings generated.