warning fix: remove pragma in LFDS

Not sure that it's correct, but those #pragma seem
to be of no use for gcc. Let's remove them
completely.

openair2/UTIL/LFDS/liblfds7.0.0/liblfds700/src/lfds700_hash_addonly/lfds700_hash_addonly_cleanup.c

@@ -36,7 +36,6 @@ void lfds700_hash_a_cleanup( struct lfds700_hash_a_state *has,
 
 
 /****************************************************************************/
-#pragma warning( disable : 4100 )
 
 static void btree_au_element_cleanup_function( struct lfds700_btree_au_state *baus, struct lfds700_btree_au_element *baue )
 {
@@ -57,5 +56,4 @@ static void btree_au_element_cleanup_function( struct lfds700_btree_au_state *ba
   return;
 }
 
-#pragma warning( default : 4100 )
 

openair2/UTIL/LFDS/liblfds7.0.0/liblfds700/src/lfds700_list_addonly_singlylinked_unordered/lfds700_list_addonly_singlylinked_unordered_insert.c

@@ -154,7 +154,6 @@ void lfds700_list_asu_insert_at_end( struct lfds700_list_asu_state *lasus,
 
 
 /****************************************************************************/
-#pragma warning( disable : 4100 )
 
 void lfds700_list_asu_insert_after_element( struct lfds700_list_asu_state *lasus,
                                             struct lfds700_list_asu_element *lasue,
@@ -189,5 +188,4 @@ void lfds700_list_asu_insert_after_element( struct lfds700_list_asu_state *lasus
   return;
 }
 
-#pragma warning( default : 4100 )