cleanup: removed one function, made one static

Moved Curl_easy_addmulti() from easy.c to multi.c, renamed it to
easy_addmulti and made it static.

Removed Curl_easy_initHandleData() and uses of it since it was emptied
in commit cdda92ab67b47d74a.
diff --git a/lib/easy.c b/lib/easy.c
index 24ddf53..07a42bb 100644
--- a/lib/easy.c
+++ b/lib/easy.c
@@ -592,20 +592,6 @@
 }
 
 /*
- * Store a pointed to the multi handle within the easy handle's data struct.
- */
-void Curl_easy_addmulti(struct SessionHandle *data,
-                        void *multi)
-{
-  data->multi = multi;
-}
-
-void Curl_easy_initHandleData(struct SessionHandle *data)
-{
-  (void)data;
-}
-
-/*
  * curl_easy_getinfo() is an external interface that allows an app to retrieve
  * information from a performed transfer and similar.
  */
@@ -701,8 +687,6 @@
 
   Curl_convert_setup(outcurl);
 
-  Curl_easy_initHandleData(outcurl);
-
   outcurl->magic = CURLEASY_MAGIC_NUMBER;
 
   /* we reach this point and thus we are OK */
@@ -746,9 +730,6 @@
   /* zero out Progress data: */
   memset(&data->progress, 0, sizeof(struct Progress));
 
-  /* init Handle data */
-  Curl_easy_initHandleData(data);
-
   data->progress.flags |= PGRS_HIDE;
   data->state.current_speed = -1; /* init to negative == impossible */
 }
diff --git a/lib/easyif.h b/lib/easyif.h
index 1f52168..c558193 100644
--- a/lib/easyif.h
+++ b/lib/easyif.h
@@ -7,7 +7,7 @@
  *                            | (__| |_| |  _ <| |___
  *                             \___|\___/|_| \_\_____|
  *
- * Copyright (C) 1998 - 2011, Daniel Stenberg, <daniel@haxx.se>, et al.
+ * Copyright (C) 1998 - 2013, Daniel Stenberg, <daniel@haxx.se>, et al.
  *
  * This software is licensed as described in the file COPYING, which
  * you should have received as part of this distribution. The terms
@@ -25,9 +25,6 @@
 /*
  * Prototypes for library-wide functions provided by easy.c
  */
-void Curl_easy_addmulti(struct SessionHandle *data, void *multi);
-
-void Curl_easy_initHandleData(struct SessionHandle *data);
 
 #endif /* HEADER_CURL_EASYIF_H */
 
diff --git a/lib/multi.c b/lib/multi.c
index 476f058..15e0e06 100644
--- a/lib/multi.c
+++ b/lib/multi.c
@@ -329,6 +329,14 @@
                            CURL_CONNECTION_HASH_SIZE);
 }
 
+/*
+ * Store a pointed to the multi handle within the easy handle's data struct.
+ */
+static void easy_addmulti(struct SessionHandle *data,
+                          void *multi)
+{
+  data->multi = multi;
+}
 
 CURLMcode curl_multi_add_handle(CURLM *multi_handle,
                                 CURL *easy_handle)
@@ -391,7 +399,7 @@
      is associated now with the multi handle which lacked one. */
   if(new_closure) {
     multi->closure_handle = new_closure;
-    Curl_easy_addmulti(multi->closure_handle, multi_handle);
+    easy_addmulti(multi->closure_handle, multi_handle);
     multi->closure_handle->state.conn_cache = multi->conn_cache;
   }
 
@@ -449,7 +457,7 @@
   }
 
   /* make the SessionHandle refer back to this multi handle */
-  Curl_easy_addmulti(data, multi_handle);
+  easy_addmulti(easy_handle, multi_handle);
 
   /* Set the timeout for this handle to expire really soon so that it will
      be taken care of even when this handle is added in the midst of operation
@@ -590,8 +598,8 @@
       easy->easy_conn = NULL;
     }
 
-    Curl_easy_addmulti(easy, NULL); /* clear the association
-                                                    to this multi handle */
+    easy_addmulti(easy, NULL); /* clear the association to this multi
+                                  handle */
 
     {
       /* make sure there's no pending message in the queue sent from this easy
@@ -1849,7 +1857,7 @@
       /* Clear the pointer to the connection cache */
       easy->state.conn_cache = NULL;
 
-      Curl_easy_addmulti(easy, NULL); /* clear the association */
+      easy_addmulti(easy, NULL); /* clear the association */
 
       easy = nexteasy;
     }
diff --git a/lib/url.c b/lib/url.c
index 93d5126..878f387 100644
--- a/lib/url.c
+++ b/lib/url.c
@@ -612,7 +612,6 @@
     res = CURLE_OUT_OF_MEMORY;
   }
   else {
-    Curl_easy_initHandleData(data);
     res = Curl_init_userdefined(&data->set);
 
     data->state.headersize=HEADERSIZE;
@@ -5791,9 +5790,6 @@
        HTTP. */
     data->set.httpreq = HTTPREQ_GET;
 
-  /* NB: the content encoding software depends on this initialization */
-  Curl_easy_initHandleData(data);
-
   k->start = Curl_tvnow(); /* start time */
   k->now = k->start;   /* current time is now */
   k->header = TRUE; /* assume header */