[libc] disable algorithm_test.cpp temporarily

[michaelrj]

Summary

The unit tests introduced in patch D128335 are causing build failures,
and the fix is non-trivial. This patch disables these tests temporarily
until a proper fix can be implemented.

libc/test/src/string/memory_utils/CMakeLists.txt

 add_libc_unittest(
   utils_test
   SUITE
     libc_string_unittests
   SRCS
     address_test.cpp
-    algorithm_test.cpp
+    # algorithm_test.cpp
     backend_test.cpp
     elements_test.cpp
     memory_access_test.cpp
     utils_test.cpp
   COMPILE_OPTIONS
     ${LIBC_COMPILE_OPTIONS_NATIVE}
     -ffreestanding
     -pthread
   DEPENDS
     libc.src.string.memory_utils.memory_utils
     libc.src.__support.CPP.array
     libc.src.__support.CPP.array_ref
 )