Revert "efl_loop: move scheduler_get to eo API"

This reverts commit f910ba248e.

The scheduler is meant to be used only in C, not by bindings so there isn't really
a use for it in the loop class. Now this patch was triggered due to complexity in
using future/promise, so will do a follow up patch to improve that.

src/lib/ecore/Ecore_Eo.h

@@ -62,7 +62,7 @@ EAPI int efl_loop_exit_code_process(Eina_Value *value);
 
 #include "efl_loop_consumer.eo.h"
 
-EAPI Eina_Future_Scheduler *efl_loop_future_scheduler_get(const Eo *obj);
+EAPI Eina_Future_Scheduler *efl_loop_future_scheduler_get(Eo *obj);
 
 #include "efl_loop_fd.eo.h"
 #include "efl_loop_handler.eo.h"

src/lib/ecore/efl_loop.c

@@ -714,8 +714,8 @@ _efl_loop_efl_version_get(Eo *obj EINA_UNUSED, Efl_Loop_Data *pd EINA_UNUSED)
    return &version;
 }
 
-EOLIAN static Eina_Future_Scheduler *
-_efl_loop_future_scheduler_get(Eo *obj, Efl_Loop_Data *pd EINA_UNUSED)
+EAPI Eina_Future_Scheduler *
+efl_loop_future_scheduler_get(Eo *obj)
 {
    if (!obj) return NULL;
 

src/lib/ecore/efl_loop.eo

@@ -47,17 +47,6 @@ class Efl.Loop (Efl.Object)
             @cref version: Efl.Version; [[Efl version]]
          }
       }
-      @property future_scheduler {
-         [[The future scheduler for the current loop.
-
-           If no future scheduler has been created for the loop then a new one
-           will be set up.
-         ]]
-         get {}
-         values {
-            future_scheduler: ptr(Eina.Future.Scheduler); [[The current loop' sfuture scheduler.]]
-         }
-      }
       iterate {
          [[Runs a single iteration of the main loop to process everything on the
          queue.]]

src/lib/eo/eina_types.eot

@@ -79,5 +79,4 @@ struct @extern Eina.Rw_Slice {
 
 struct @extern Eina.Value.Type; [[Eina value type]]
 struct @extern Eina.Future; [[Eina_Future handle]]
-struct @extern Eina.Future.Scheduler; [[Eina_Future_Scheduler handle]]
 struct @extern Eina.Promise; [[Eina_Promise handle]]