update gemfile accidental duplicates

Gemfile

@@ -16,28 +16,17 @@ end
 gem 'aws-sdk', '~> 2.3.7'
 gem 'faraday'
 gem 'faraday_middleware'
-gem 'json-schema', '~> 2.8'
-gem 'json-schema_builder', '~> 0.0.8'
-gem 'pg', '~> 0.21'
-gem 'pundit', '~> 1.1.0'
-gem 'rack-cors', '~> 1.0.5'
-gem 'redis', '~> 3.3.0'
-gem 'restpack_serializer', git: 'https://github.com/zooniverse/restpack_serializer.git', branch: 'talk-api-version', ref: '637aaaf85e'
-gem 'sidekiq', '< 6'
-gem 'sidekiq-congestion', '~> 0.1.0'
-gem 'sidetiq', '~> 0.7.2'
 gem 'honeybadger', '~> 4.5.0'
 gem 'json-schema', '~> 2.8'
 gem 'json-schema_builder', '~> 0.0.8'
 gem 'logstasher', '~> 0.9.0'
 gem 'newrelic_rpm'
-gem 'zoo_stream', '~> 1.0'
+gem 'pg', '~> 0.21'
 gem 'puma'
 gem 'pundit', '~> 1.1.0'
 gem 'rack-cors', '~> 1.0.5'
 gem 'redis', '~> 3.3.0'
 gem 'restpack_serializer', git: 'https://github.com/zooniverse/restpack_serializer.git', branch: 'talk-api-version', ref: '637aaaf85e'
-gem 'schema_plus_pg_indexes', '~> 0.1.12'
 gem 'sidekiq', '< 6'
 gem 'sidekiq-congestion', '~> 0.1.0'
 gem 'sidetiq', '~> 0.7.2'
@@ -57,6 +46,7 @@ group :test, :development do
   gem 'rspec-its', '~> 1.2.0'
   gem 'spring-commands-rspec', '~> 1.0.4'
   gem 'ten_years_rails'
+  gem 'timecop'
 end
 
 group :test do

Gemfile.lock

@@ -313,7 +313,7 @@ GEM
       rest-client (>= 2.0.2)
     thor (1.1.0)
     thread_safe (0.3.6)
-    timecop (0.8.1)
+    timecop (0.9.8)
     timers (4.1.2)
       hitimes
     tzinfo (1.2.10)