Arm backend: Remove function getNodeArgs (#13316)

The function was only used in one place and it was only a couple of
lines so the logic was moved to where the function was originally
called, which is in process_node.py.

Signed-off-by: Sebastian Larsson <[email protected]>

Author: Sebastian-Larsson

backends/arm/process_node.py

@@ -14,7 +14,7 @@
 from executorch.backends.arm.operators.node_visitor import NodeVisitor
 from executorch.backends.arm.tosa_mapping import TosaArg
 from executorch.backends.arm.tosa_specification import TosaSpecification
-from executorch.backends.arm.tosa_utils import getNodeArgs, tosa_shape
+from executorch.backends.arm.tosa_utils import tosa_shape
 from torch._export.utils import (
     get_buffer,
     get_lifted_tensor_constant,
@@ -33,7 +33,10 @@ def process_call_function(
     tosa_spec: TosaSpecification,
 ):
     # Unpack arguments and convert
-    inputs = getNodeArgs(node, tosa_spec)
+    try:
+        inputs = [TosaArg(arg, tosa_spec) for arg in node.args]
+    except ValueError as e:
+        raise ValueError(f"Failed processing args to op:\n{node}") from e
 
     # Convert output (this node itself)
     try:

backends/arm/tosa_utils.py

@@ -15,7 +15,7 @@
 
 import torch
 
-from executorch.backends.arm.tosa_mapping import extract_tensor_meta, TosaArg
+from executorch.backends.arm.tosa_mapping import extract_tensor_meta
 
 from executorch.backends.arm.tosa_specification import TosaSpecification
 from executorch.exir.dialects._ops import ops as exir_ops
@@ -26,13 +26,6 @@
 logger = logging.getLogger(__name__)
 
 
-def getNodeArgs(node: Node, tosa_spec: TosaSpecification) -> list[TosaArg]:
-    try:
-        return [TosaArg(arg, tosa_spec) for arg in node.args]
-    except ValueError as e:
-        raise ValueError(f"Failed processing args to op:\n{node}") from e
-
-
 def are_fake_tensors_broadcastable(
     fake_tensors: list[FakeTensor],
 ) -> tuple[bool, list[int]]: