fix: remove check on bais in ConvDepthWise2D forward function

src/operator/ConvDepthWiseImpl.cpp

@@ -65,7 +65,6 @@ void Aidge::ConvDepthWiseImpl2D_cpu::forward() {
 
     AIDGE_ASSERT(op_.getInput(0), "missing input #0 in ConvDepthWise Operator");
     AIDGE_ASSERT(op_.getInput(1), "missing input #1 in ConvDepthWise Operator");
-    AIDGE_ASSERT(op_.getInput(2), "missing input #2 in ConvDepthWise Operator");
 
     AIDGE_ASSERT((op_.getInput(0)->nbDims() == 4), "support for 4-dimensions tensors only");