Remove custom email widget and use Django's

Signed-off-by: Roberto Rosario <roberto.rosario.gonzalez@gmail.com>

HISTORY.rst

@@ -162,6 +162,7 @@
 * Remove search elapsed time calculation.
 * Remove SEARCH_LIMIT setting.
 * Use the 'handler' prefix for all the signal handler functions.
+* Remove custom email widget and use Django's.
 
 3.1.11 (2019-04-XX)
 ===================

docs/releases/3.2.rst

@@ -194,6 +194,7 @@ Other changes
 * Remove search elapsed time calculation.
 * Remove SEARCH_LIMIT setting.
 * Use the 'handler' prefix for all the signal handler functions.
+* Remove custom email widget and use Django's.
 
 Removals
 --------

mayan/apps/authentication/forms.py

@@ -5,10 +5,9 @@ import warnings
 from django import forms
 from django.contrib.auth import authenticate
 from django.contrib.auth.forms import AuthenticationForm
+from django.forms.widgets import EmailInput
 from django.utils.translation import ugettext_lazy as _
 
-from mayan.apps.common.widgets import EmailInput
-
 
 class EmailAuthenticationForm(forms.Form):
     """

mayan/apps/common/widgets.py

@@ -20,29 +20,6 @@ class DisableableSelectWidget(forms.widgets.SelectMultiple):
         return result
 
 
-# From: http://www.peterbe.com/plog/emailinput-html5-django
-class EmailInput(forms.widgets.Input):
-    """
-    Class for a login form widget that accepts only well formated
-    email address
-    """
-    input_type = 'email'
-
-    def render(self, name, value, attrs=None):
-        if attrs is None:
-            attrs = {}
-
-        attrs.update(
-            {
-                'autocorrect': 'off',
-                'autocapitalize': 'off',
-                'spellcheck': 'false'
-            }
-        )
-
-        return super(EmailInput, self).render(name, value, attrs=attrs)
-
-
 class PlainWidget(forms.widgets.Widget):
     """
     Class to define a form widget that effectively nulls the htmls of a