Removed unused gems for rich text (todo later)

• Removed:
- unused gems for rich text (todo later)

Gemfile.lock

@@ -311,7 +311,6 @@ GEM
       activerecord
       kaminari-core (= 1.1.1)
     kaminari-core (1.1.1)
-    kramdown (2.1.0)
     launchy (2.4.3)
       addressable (~> 2.3)
     letter_opener (1.7.0)
@@ -479,7 +478,6 @@ GEM
       link_header (~> 0.0, >= 0.0.8)
     rdf-normalize (0.3.3)
       rdf (>= 2.2, < 4.0)
-    redcarpet (3.5.0)
     redis (4.1.2)
     redis-actionpack (5.0.2)
       actionpack (>= 4.0, < 6)
@@ -703,7 +701,6 @@ DEPENDENCIES
   json-ld (~> 3.0)
   json-ld-preloaded (~> 3.0)
   kaminari (~> 1.1)
-  kramdown (~> 2.1.0)
   letter_opener (~> 1.7)
   letter_opener_web (~> 1.3)
   link_header (~> 0.0)
@@ -742,7 +739,6 @@ DEPENDENCIES
   rails-i18n (~> 5.1)
   rails-settings-cached (~> 0.6)
   rdf-normalize (~> 0.3)
-  redcarpet (~> 3.5.0)
   redis (~> 4.1)
   redis-namespace (~> 1.5)
   redis-rails (~> 5.0)