tweaks: elide a function that is used just once

src/nano.c

@@ -463,12 +463,6 @@ void unlink_opennode(openfilestruct *fileptr)
 	fileptr->prev->next = fileptr->next;
 	fileptr->next->prev = fileptr->prev;
 
-	delete_opennode(fileptr);
-}
-
-/* Free all the memory in the given open-file node. */
-void delete_opennode(openfilestruct *fileptr)
-{
 	free(fileptr->filename);
 	free_lines(fileptr->filetop);
 #ifndef NANO_TINY

src/proto.h

@@ -400,7 +400,6 @@ void ingraft_buffer(linestruct *somebuffer);
 void copy_from_buffer(linestruct *somebuffer);
 #ifdef ENABLE_MULTIBUFFER
 void unlink_opennode(openfilestruct *fileptr);
-void delete_opennode(openfilestruct *fileptr);
 #endif
 void print_view_warning(void);
 void show_restricted_warning(void);