lint: fix Rubocop warnings

The Rails/UniqueValidationWithoutIndex rule is disabled for now, but
we'll need to re-enable it (and fix the underlying issues) after the
migration to Rails 6.

.rubocop.yml

@@ -340,9 +340,6 @@ Lint/EmptyInterpolation:
 Lint/EmptyWhen:
   Enabled: true
 
-Lint/EndInMethod:
-  Enabled: true
-
 Lint/EnsureReturn:
   Enabled: false
 
@@ -794,6 +791,9 @@ Rails/TimeZone:
 Rails/UniqBeforePluck:
   Enabled: true
 
+Rails/UniqueValidationWithoutIndex:
+  Enabled: false
+
 Rails/UnknownEnv:
   Enabled: false
 

app/controllers/admin/procedures_controller.rb

@@ -92,9 +92,7 @@ class Admin::ProceduresController < AdminController
 
       flash.now.notice = "La démarche a correctement été clonée vers le nouvel administrateur."
 
-      respond_to do |format|
-        format.js
-      end
+      respond_to(&:js)
     end
   end
 

spec/controllers/admin/attestation_templates_controller_spec.rb

@@ -40,7 +40,7 @@ describe Admin::AttestationTemplatesController, type: :controller do
 
     context 'with an interlaced png' do
       let(:upload_params) { { logo: interlaced_logo } }
-      #it { expect(procedure.attestation_template.logo.download).to eq(uninterlaced_logo.read) }
+      it { expect(procedure.attestation_template.logo.download).to eq(uninterlaced_logo.read) }
     end
 
     context 'if an attestation template does not exist on the procedure' do