Remove unnecessary sleep calls at start of download threads

devine/commands/dl.py

@@ -700,7 +700,6 @@ class dl:
         prepare_drm: Callable,
         progress: partial
     ):
-        time.sleep(1)
         if self.DL_POOL_STOP.is_set():
             return
 

devine/core/manifests/dash.py

@@ -448,7 +448,6 @@ class DASH:
             state_event = Event()
 
             def download_segment(filename: str, segment: tuple[str, Optional[str]]) -> int:
-                time.sleep(0.1)
                 if state_event.is_set():
                     return 0
 

devine/core/manifests/hls.py

@@ -214,8 +214,7 @@ class HLS:
 
         state_event = Event()
 
-        def download_segment(filename: str, segment, init_data: Queue, segment_key: Queue) -> int:
-            time.sleep(0.1)
+        def download_segment(filename: str, segment: m3u8.Segment, init_data: Queue, segment_key: Queue) -> int:
             if state_event.is_set():
                 return 0