remove input shape

Author: MorvanZhou

��custom-train.py

@@ -10,7 +10,7 @@
 class Model(keras.Model):
     def __init__(self):
         super(Model, self).__init__()
-        self.l1 = keras.layers.Dense(10, activation=keras.activations.relu, input_shape=(1, ))
+        self.l1 = keras.layers.Dense(10, activation=keras.activations.relu)
         self.l2 = keras.layers.Dense(1)
 
     def call(self, x, training=None, mask=None):

simplified-training.py

@@ -9,7 +9,7 @@
 test_x, test_y = data_x[900:], data_y[900:]
 
 model = keras.models.Sequential([
-    keras.layers.Dense(10, activation=keras.activations.relu, input_shape=(1, )),
+    keras.layers.Dense(10, activation=keras.activations.relu),
     keras.layers.Dense(1),
 ])
 model.compile(