Remove unused validation functions

isint() isbool() etc are no longer used.

Author: Ignacio Quintero

src/sagemaker/amazon/linear_learner.py

@@ -13,7 +13,7 @@
 from sagemaker.amazon.amazon_estimator import AmazonAlgorithmEstimatorBase, registry
 from sagemaker.amazon.common import numpy_to_record_serializer, record_deserializer
 from sagemaker.amazon.hyperparameter import Hyperparameter as hp  # noqa
-from sagemaker.amazon.validation import isin, gt, lt, isbool
+from sagemaker.amazon.validation import isin, gt, lt
 from sagemaker.predictor import RealTimePredictor
 from sagemaker.model import Model
 from sagemaker.session import Session
@@ -35,7 +35,7 @@ class LinearLearner(AmazonAlgorithmEstimatorBase):
     epochs = hp('epochs', gt(0), "An integer greater-than 0", int)
     predictor_type = hp('predictor_type', isin('binary_classifier', 'regressor'),
                         'One of "binary_classifier" or "regressor"', str)
-    use_bias = hp('use_bias', isbool, "Either True or False", bool)
+    use_bias = hp('use_bias', (), "Either True or False", bool)
     num_models = hp('num_models', gt(0), "An integer greater-than 0", int)
     num_calibration_samples = hp('num_calibration_samples', gt(0), "An integer greater-than 0", int)
     init_method = hp('init_method', isin('uniform', 'normal'), 'One of "uniform" or "normal"', str)

src/sagemaker/amazon/validation.py

@@ -10,7 +10,6 @@
 # distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF
 # ANY KIND, either express or implied. See the License for the specific
 # language governing permissions and limitations under the License.
-import numbers
 
 
 def gt(minimum):
@@ -41,8 +40,3 @@ def istype(expected):
     def validate(value):
         return isinstance(value, expected)
     return validate
-
-
-isint = istype(int)
-isbool = istype(bool)
-isnumber = istype(numbers.Number)  # noqa