[microNPU] Remove unused import and command stream printing (#10764)

This is a follow up to #10695.

Change-Id: I7f2dc14826cefea81fe5ff69c6255cdb5dc7f5c0

Author: ekalda

tests/python/contrib/test_ethosu/test_codegen.py

@@ -460,7 +460,7 @@ def pooling(x):
             op = tf.nn.relu(op)
         return op
 
-    _compare_tvm_with_tflite(pooling, [ifm_shape], accel_type, print_cmm=True)
+    _compare_tvm_with_tflite(pooling, [ifm_shape], accel_type)
 
 
 @pytest.mark.parametrize("accel_type", ACCEL_TYPES)

tests/python/contrib/test_ethosu/test_replace_identity.py

@@ -14,7 +14,6 @@
 # KIND, either express or implied.  See the License for the
 # specific language governing permissions and limitations
 # under the License.
-from numpy.core.shape_base import block
 import pytest
 
 pytest.importorskip("ethosu.vela")