Rename headerRemoveEntry() to headerDel(), add compat wrapper

- no differences here except headerDel is a nice short name (lifted from
  rpm5.org) to go with the new headerGet() etc family
- deprecate headerRemoveEntry()

lib/header.c

@@ -806,7 +806,7 @@ indexEntry findEntry(Header h, rpmTag tag, rpmTagType type)
     return NULL;
 }
 
-int headerRemoveEntry(Header h, rpmTag tag)
+int headerDel(Header h, rpmTag tag)
 {
     indexEntry last = h->index + h->indexUsed;
     indexEntry entry, first;
@@ -843,6 +843,11 @@ int headerRemoveEntry(Header h, rpmTag tag)
     return 0;
 }
 
+int headerRemoveEntry(Header h, rpmTag tag)
+{
+    return headerDel(h, tag);
+}
+
 Header headerLoad(void * uh)
 {
     int32_t * ei = (int32_t *) uh;

lib/header.h

@@ -318,7 +318,19 @@ int headerModifyEntry(Header h, rpmTag tag, rpmTagType type,
  * @param tag		tag
  * @return		0 on success, 1 on failure (INCONSISTENT)
  */
-int headerRemoveEntry(Header h, rpmTag tag);
+int headerDel(Header h, rpmTag tag);
+
+/** \ingroup header
+ * Delete tag in header.
+ * Removes all entries of type tag from the header, returns 1 if none were
+ * found.
+ * @deprecated		Use headerDel() instead
+ *
+ * @param h		header
+ * @param tag		tag
+ * @return		0 on success, 1 on failure (INCONSISTENT)
+ */
+int headerRemoveEntry(Header h, rpmTag tag) RPM_GNUC_DEPRECATED;
 
 /** \ingroup header
  * Return formatted output string from header tags.