Remove redundant aria-labelledby; the title is sufficient on its own

app/models/blacklight/icon.rb

@@ -26,19 +26,14 @@ def initialize(icon_name, classes: '', aria_hidden: false, label: true, role: 'i
     def svg
       svg = ng_xml.at_xpath('svg')
       svg['role'] = role
-      svg['aria-labelledby'] = unique_id if label
-      svg.prepend_child("<title id='#{unique_id}'>#{icon_label}</title>") if label
+      svg.prepend_child("<title>#{icon_label}</title>") if label
       ng_xml.to_xml
     end
 
     def icon_label
       I18n.translate("blacklight.icon.#{icon_name_context}", default: "#{icon_name} icon")
     end
 
-    def unique_id
-      @unique_id ||= "bl-icon-#{icon_name_context}-#{SecureRandom.hex(8)}"
-    end
-
     ##
     # @return [Hash]
     def options

spec/models/blacklight/icon_spec.rb

@@ -17,11 +17,7 @@
     end
     it 'adds title' do
       expect(Capybara.string(subject.svg))
-        .to have_css 'title[id^="bl-icon-search-"]', text: 'search icon'
-    end
-    it 'adds aria-labelledby' do
-      expect(Capybara.string(subject.svg))
-        .to have_css 'svg[aria-labelledby^="bl-icon-search-"]'
+        .to have_css 'title', text: 'search icon'
     end
     context 'when label is false' do
       subject { described_class.new(:search, classes: 'awesome', aria_hidden: true, label: false) }
@@ -30,18 +26,14 @@
         expect(Capybara.string(subject.svg))
           .not_to have_css 'title', text: 'search icon'
       end
-      it 'does not add aria-labelledby' do
-        expect(Capybara.string(subject.svg))
-          .not_to have_css 'svg[aria-labelledby^="bl-icon-search-"]'
-      end
     end
 
     context ' with a label context' do
       subject { described_class.new(:search, classes: 'awesome', aria_hidden: true, additional_options: { label_context: 'foo' }) }
 
       it 'adds title' do
         expect(Capybara.string(subject.svg))
-          .to have_css 'title[id^="bl-icon-search_foo-"]', text: 'search icon'
+          .to have_css 'title', text: 'search icon'
       end
     end
   end