Remove some leftover 'watch' attributes from Vue components

templates/components/text_input.html

@@ -17,7 +17,6 @@
   optional=True,
   showOptional=True,
   showLabel=True,
-  watch=False,
   show_validation=True) -%}
 
   <textinput
@@ -30,7 +29,6 @@
     {% if field.errors %}v-bind:initial-errors='{{ field.errors | list }}'{% endif %}
     v-bind:optional={{ optional|lower }}
     key='{{ field.name }}'
-    :watch='{{ watch | string | lower }}'
     inline-template>
 
     <div