Remove unused FlattenSequences

src/pystencilssfg/ir/postprocessing.py

@@ -27,38 +27,6 @@ from ..lang import (
 )
 
 
-class FlattenSequences:
-    """Flattens any nested sequences occuring in a kernel call tree."""
-
-    def __call__(self, node: SfgCallTreeNode) -> None:
-        self.visit(node)
-
-    def visit(self, node: SfgCallTreeNode):
-        match node:
-            case SfgSequence():
-                self.flatten(node)
-            case _:
-                for c in node.children:
-                    self.visit(c)
-
-    def flatten(self, sequence: SfgSequence) -> None:
-        children_flattened: list[SfgCallTreeNode] = []
-
-        def flatten(seq: SfgSequence):
-            for c in seq.children:
-                if isinstance(c, SfgSequence):
-                    flatten(c)
-                else:
-                    children_flattened.append(c)
-
-        flatten(sequence)
-
-        for c in children_flattened:
-            self.visit(c)
-
-        sequence.children = children_flattened
-
-
 class PostProcessingContext:
     def __init__(self) -> None:
         self._live_variables: dict[str, SfgVar] = dict()
@@ -129,9 +97,6 @@ class PostProcessingResult:
 
 
 class CallTreePostProcessing:
-    def __init__(self):
-        self._flattener = FlattenSequences()
-
     def __call__(self, ast: SfgCallTreeNode) -> PostProcessingResult:
         live_vars = self.get_live_variables(ast)
         return PostProcessingResult(live_vars)