don't cache section lists

memory usage on prod is too high for now

schedules/Gemfile.lock

@@ -71,7 +71,6 @@ GEM
       rack-test (>= 0.5.4)
       xpath (>= 2.0, < 4.0)
     childprocess (3.0.0)
-    chronic (0.10.2)
     coderay (1.1.2)
     concurrent-ruby (1.1.5)
     crass (1.0.5)
@@ -215,7 +214,6 @@ GEM
       actionpack (>= 4.0)
       activesupport (>= 4.0)
       sprockets (>= 3.0.0)
-    sqlite3 (1.4.1)
     thor (0.20.3)
     thread_safe (0.3.6)
     tilt (2.0.10)
@@ -239,8 +237,6 @@ GEM
     websocket-driver (0.7.1)
       websocket-extensions (>= 0.1.0)
     websocket-extensions (0.1.4)
-    whenever (1.0.0)
-      chronic (>= 0.6.3)
     xpath (3.2.0)
       nokogiri (~> 1.8)
     yard (0.9.20)
@@ -269,13 +265,11 @@ DEPENDENCIES
   solargraph
   spring
   spring-watcher-listen (~> 2.0.0)
-  sqlite3
   turbolinks
   tzinfo-data
   uglifier
   web-console (>= 3.3.0)
   webpacker
-  whenever
 
 BUNDLED WITH
-   2.0.2
+   2.1.4

schedules/app/views/courses/show.html.erb

@@ -43,7 +43,7 @@
 				<h5 class="section-type-label"><%= type %></h5>
 			<% end %>
 			<ul class="section-list">
-				<%= render partial: 'shared/section', collection: sections, cached: true %>
+				<%= render partial: 'shared/section', collection: sections %>
 			</ul>
 		<% end %>
     </div>