Remove deprecated float positional classes from ingredients

They have been replaced by `css_classes` in your ingredients settings.

app/views/alchemy/admin/ingredients/_file_fields.html.erb

@@ -1,18 +1,5 @@
-<% css_classes = ingredient.settings[:css_classes] %>
-
 <%= f.input :link_text %>
 <%= f.input :title %>
-<%- if css_classes.present? -%>
-  <%= f.input :css_class,
-    collection: css_classes,
-    include_blank: Alchemy.t('None') %>
-<%- else -%>
-  <% Alchemy::Deprecation.warn %(Float positioning in File ingredients is deprecated. If you rely on them, please use `css_classes` in your "#{ingredient.role}" settings instead.) %>
-  <%= f.input :css_class,
-    label: Alchemy.t(:position_in_text),
-    collection: [
-      [Alchemy.t(:above), "no_float"],
-      [Alchemy.t(:left), "left"],
-      [Alchemy.t(:right), "right"]
-    ], include_blank: Alchemy.t('Layout default') %>
-<%- end -%>
+<%= f.input :css_class,
+  collection: ingredient.settings[:css_classes],
+  include_blank: Alchemy.t('None') %>

app/views/alchemy/admin/ingredients/_picture_fields.html.erb

@@ -19,13 +19,4 @@
       end
     end %>
   <%= f.input :css_class, collection: css_classes_collection, include_blank: false %>
-<%- else -%>
-  <% Alchemy::Deprecation.warn %(Float positioning in Picture ingredients is deprecated. If you rely on them, please use `css_classes` in your "#{ingredient.role}" settings instead.) %>
-  <%= f.input :css_class,
-    label: Alchemy.t(:position_in_text),
-    collection: [
-      [Alchemy.t(:above), "no_float"],
-      [Alchemy.t(:left), "left"],
-      [Alchemy.t(:right), "right"]
-    ], include_blank: Alchemy.t("Layout default") %>
 <%- end -%>

spec/views/alchemy/admin/ingredients/edit_spec.rb

@@ -8,12 +8,6 @@
     view.instance_variable_set(:@ingredient, ingredient)
   end
 
-  around do |example|
-    Alchemy::Deprecation.silence do
-      example.run
-    end
-  end
-
   context "for a picture ingredient" do
     let(:image) do
       fixture_file_upload(