[cpp] Removed readfile snippet.

The snippet doesn't use expected C++ practices for reading files and
is more of a Textmate legacy.

snippets/cpp.snippets

@@ -95,16 +95,6 @@ snippet cout
 # std::cin
 snippet cin
 	std::cin >> ${1};${2}
-# read file into vector
-snippet readfile
-	std::vector<char> v;
-	if (FILE *${2:fp} = fopen(${1:"filename"}, "r")) {
-		char buf[1024];
-		while (size_t len = fread(buf, 1, sizeof(buf), $2))
-			v.insert(v.end(), buf, buf + len);
-		fclose($2);
-	}${3}
-
 ##
 ## Iteration
 # for i