pad: remove GST_FLOW_RESEND

It is unused and undefined.

gst/gstpad.c

@@ -171,7 +171,6 @@ typedef struct
 
 static GstFlowQuarks flow_quarks[] = {
   {GST_FLOW_CUSTOM_SUCCESS, "custom-success", 0},
-  {GST_FLOW_RESEND, "resend", 0},
   {GST_FLOW_OK, "ok", 0},
   {GST_FLOW_NOT_LINKED, "not-linked", 0},
   {GST_FLOW_WRONG_STATE, "wrong-state", 0},

gst/gstpad.h

@@ -125,8 +125,6 @@ typedef enum {
 
 /**
  * GstFlowReturn:
- * @GST_FLOW_RESEND:		 Resend buffer, possibly with new caps (not
- *                                 sent yet) (unused/unimplemented).
  * @GST_FLOW_OK:		 Data passing was ok.
  * @GST_FLOW_NOT_LINKED:	 Pad is not linked.
  * @GST_FLOW_WRONG_STATE:	 Pad is in wrong state.
@@ -164,7 +162,6 @@ typedef enum {
   GST_FLOW_CUSTOM_SUCCESS = 100,
 
   /* core predefined */
-  GST_FLOW_RESEND	  =  1,
   GST_FLOW_OK		  =  0,
   /* expected failures */
   GST_FLOW_NOT_LINKED     = -1,

tests/check/gst/gstpad.c

@@ -814,11 +814,6 @@ GST_START_TEST (test_flowreturn)
   quark = gst_flow_to_quark (ret);
   fail_if (strcmp (g_quark_to_string (quark), "eos"));
 
-  ret = GST_FLOW_RESEND;
-  fail_if (strcmp (gst_flow_get_name (ret), "resend"));
-  quark = gst_flow_to_quark (ret);
-  fail_if (strcmp (g_quark_to_string (quark), "resend"));
-
   /* custom returns */
   ret = GST_FLOW_CUSTOM_SUCCESS;
   fail_if (strcmp (gst_flow_get_name (ret), "custom-success"));