Remove jquery-validation-rails gem

#744

Gemfile

@@ -42,7 +42,6 @@ gem 'sass-rails',     '5.0.6'   # sass style
 gem 'coffee-rails',    '4.1.0'  # coffeescript support
 gem 'jquery-rails',    '4.0.4'  # jquery
 gem 'selectize-rails', '0.12.1' # include selectize.js for select
-gem 'jquery-validation-rails', '1.13.1' # validate on client side
 
 # view helpers
 gem 'kaminari',         '0.16.3'  # pagination

Gemfile.lock

@@ -241,9 +241,6 @@ GEM
       thor (>= 0.14, < 2.0)
     jquery-ui-rails (5.0.5)
       railties (>= 3.2.16)
-    jquery-validation-rails (1.13.1)
-      railties (>= 3.2, < 5.0)
-      thor (~> 0.14)
     json (1.8.6)
     kaminari (0.16.3)
       actionpack (>= 3.0.0)
@@ -508,7 +505,6 @@ DEPENDENCIES
   jbuilder (= 2.2.16)
   jquery-rails (= 4.0.4)
   jquery-ui-rails (= 5.0.5)
-  jquery-validation-rails (= 1.13.1)
   kaminari (= 0.16.3)
   liquid (= 3.0.6)
   mina (= 0.3.1)

app/assets/javascripts/admin-manifest.coffee

@@ -5,7 +5,6 @@
 #= require admin/autocomplete
 #= require jquery.nested_attributes
 #= require selectize
-#= require shared/jquery.validate.bootstrap
 #= require jquery-ui/datepicker
 #= require select2
 #= require jquery.doubleScroll

app/assets/javascripts/admin/application.coffee

@@ -6,10 +6,6 @@ $(window).load ->
     allowEmptyOption: true, create: true
   })
 
-  # client side validate all forms
-  $('form').each ->
-    $(this).validate()
-
   $('[data-toggle="popover"]').popover()
 
   # doublescroll

app/assets/javascripts/shared/jquery.validate.bootstrap.coffee

@@ -1,19 +0,0 @@
-#= require jquery.validate
-#= require jquery.validate.additional-methods
-
-# override jquery validate plugin defaults
-$.validator.setDefaults
-  highlight: (element) ->
-    $(element).closest('.form-group').addClass 'has-error'
-    return
-  unhighlight: (element) ->
-    $(element).closest('.form-group').removeClass 'has-error'
-    return
-  errorElement: 'span'
-  errorClass: 'help-block'
-  errorPlacement: (error, element) ->
-    if element.parent('.input-group').length
-      error.insertAfter element.parent()
-    else
-      error.insertAfter element
-    return