deprecate std.stream and friends

std/cstream.d

@@ -21,7 +21,7 @@
  *    (See accompanying file LICENSE_1_0.txt or copy at
  *          http://www.boost.org/LICENSE_1_0.txt)
  */
-module std.cstream;
+deprecated module std.cstream;
 
 public import core.stdc.stdio;
 public import std.stream;

std/net/curl.d

@@ -167,7 +167,6 @@ import std.encoding;
 import std.exception;
 import std.regex;
 import std.socket : InternetAddress;
-import std.stream;
 import std.string;
 import std.traits;
 import std.typecons;
@@ -291,9 +290,8 @@ void download(Conn = AutoProtocol)(const(char)[] url, string saveToPath, Conn co
     static if (is(Conn : HTTP) || is(Conn : FTP))
     {
         conn.url = url;
-        auto f = new std.stream.BufferedFile(saveToPath, FileMode.OutNew);
-        scope (exit) f.close();
-        conn.onReceive = (ubyte[] data) { return f.write(data); };
+        auto f = File(saveToPath, "w");
+        conn.onReceive = (ubyte[] data) { f.write(data); return data.length; };
         conn.perform();
     }
     else
@@ -351,13 +349,15 @@ void upload(Conn = AutoProtocol)(string loadFromPath, const(char)[] url, Conn co
 
     static if (is(Conn : HTTP) || is(Conn : FTP))
     {
-        auto f = new std.stream.BufferedFile(loadFromPath, FileMode.In);
-        scope (exit) f.close();
+        static import std.file;
+        void[] f;
+
         conn.onSend = (void[] data)
         {
-            return f.read(cast(ubyte[])data);
+            f = std.file.read(loadFromPath);
+            return f.length;
         };
-        conn.contentLength = cast(size_t)f.size;
+        conn.contentLength = f.length;
         conn.perform();
     }
 }

std/socketstream.d

@@ -37,7 +37,7 @@
  * Macros: WIKI=Phobos/StdSocketstream
  */
 
-module std.socketstream;
+deprecated module std.socketstream;
 
 private import std.stream;
 private import std.socket;

std/stream.d

@@ -27,7 +27,7 @@
  * "as is" without express or implied warranty.
  */
 
-module std.stream;
+deprecated module std.stream;
 
 
 import std.internal.cstring;

std/typecons.d

@@ -3011,11 +3011,6 @@ unittest
         inout(Object) foo() inout;
     }
     BlackHole!Foo o;
-
-    // Bugzilla 12464
-    import std.stream;
-    import std.typecons;
-    BlackHole!OutputStream dout;
 }