[Core] add remove_seq_from_computed_blocks_tracker to BlockSpaceManager (#19686)

Signed-off-by: 刘全 <quan.liu2@dbappsecurity.com.cn>
Co-authored-by: 刘全 <quan.liu2@dbappsecurity.com.cn>

vllm/core/interfaces.py

@@ -133,3 +133,7 @@ class BlockSpaceManager(ABC):
     @abstractmethod
     def get_num_cached_tokens(self, seq: Sequence) -> int:
         pass
+
+    @abstractmethod
+    def remove_seq_from_computed_blocks_tracker(self, seq: Sequence) -> None:
+        pass
\ No newline at end of file

vllm/core/placeholder_block_space_manager.py

@@ -98,3 +98,6 @@ class PlaceholderBlockSpaceManager(BlockSpaceManager):
 
     def get_num_cached_tokens(self, seq: Sequence) -> int:
         return 0
+
+    def remove_seq_from_computed_blocks_tracker(self, seq: Sequence) -> None:
+        return