Update text_classification.ipynb

Removed 'from tensorflow.keras import preprocessing'
Changed 'tf.keras.preprocessing.text_dataset_from_directory' with 'tf.keras.utils.text_dataset_from_directory'  at 3 places (raw_train_ds, raw_val_ds and raw_test_ds) in Download and explore the dataset section.
Changed 'preprocessing.TextVectorization' with 'tf.keras.layers.TextVectorization' at Load the dataset section

Author: RenuPatelGoogle

site/en/tutorials/keras/text_classification.ipynb

@@ -120,7 +120,7 @@
         "\n",
         "from tensorflow.keras import layers\n",
         "from tensorflow.keras import losses\n",
-        "from tensorflow.keras import preprocessing"
+       
       ]
     },
     {
@@ -286,7 +286,7 @@
         "batch_size = 32\n",
         "seed = 42\n",
         "\n",
-        "raw_train_ds = tf.keras.preprocessing.text_dataset_from_directory(\n",
+        "raw_train_ds = tf.keras.utils.text_dataset_from_directory(\n",
         "    'aclImdb/train', \n",
         "    batch_size=batch_size, \n",
         "    validation_split=0.2, \n",
@@ -366,7 +366,7 @@
       },
       "outputs": [],
       "source": [
-        "raw_val_ds = tf.keras.preprocessing.text_dataset_from_directory(\n",
+        "raw_val_ds = tf.keras.utils.text_dataset_from_directory(\n",
         "    'aclImdb/train', \n",
         "    batch_size=batch_size, \n",
         "    validation_split=0.2, \n",
@@ -382,7 +382,7 @@
       },
       "outputs": [],
       "source": [
-        "raw_test_ds = tf.keras.preprocessing.text_dataset_from_directory(\n",
+        "raw_test_ds = tf.keras.utils.text_dataset_from_directory(\n",
         "    'aclImdb/test', \n",
         "    batch_size=batch_size)"
       ]