compilers: Remove outdated MSVC implementation of cc.find_library

With the change to cc.links to translate unix link flags, this is no
longer needed and is wrong because it hasn't kept-up with the improved
default cc.find_library implementation.

mesonbuild/compilers.py

@@ -1393,19 +1393,6 @@ class VisualStudioCCompiler(CCompiler):
     def build_rpath_args(self, build_dir, rpath_paths, install_rpath):
         return []
 
-    def find_library(self, libname, extra_dirs):
-        code = '''int main(int argc, char **argv) {
-    return 0;
-}
-        '''
-        args = []
-        for i in extra_dirs:
-            args += self.get_linker_search_args(i)
-        args.append(libname + '.lib')
-        if self.links(code, extra_args=args):
-            return args
-        return None
-
     # FIXME, no idea what these should be.
     def thread_flags(self):
         return []