Remove specs for old rails versions

spec/integration/apartment_rake_integration_spec.rb

@@ -47,60 +47,31 @@
       Company.delete_all
     end
 
-    context 'with ActiveRecord below 5.2.0' do
-      before do
-        allow(ActiveRecord::Migrator).to receive(:migrations_paths) { %w[spec/dummy/db/migrate] }
-        allow(Apartment::Migrator).to receive(:activerecord_below_5_2?) { true }
-      end
-
-      describe '#migrate' do
-        it 'should migrate all databases' do
-          expect(ActiveRecord::Migrator).to receive(:migrate).exactly(company_count).times
-
-          @rake['apartment:migrate'].invoke
-        end
-      end
-
-      describe '#rollback' do
-        it 'should rollback all dbs' do
-          expect(ActiveRecord::Migrator).to receive(:rollback).exactly(company_count).times
-
-          @rake['apartment:rollback'].invoke
-        end
+    let(:migration_context_double) { double(:migration_context) }
+
+    describe '#migrate' do
+      it 'should migrate all databases' do
+        if ActiveRecord.version >= Gem::Version.new('7.2.0')
+          allow(ActiveRecord::Base.connection_pool)
+        else
+          allow(ActiveRecord::Base.connection)
+        end.to receive(:migration_context) { migration_context_double }
+        expect(migration_context_double).to receive(:migrate).exactly(company_count).times
+
+        @rake['apartment:migrate'].invoke
       end
     end
 
-    context 'with ActiveRecord above or equal to 5.2.0' do
-      let(:migration_context_double) { double(:migration_context) }
-
-      before do
-        allow(Apartment::Migrator).to receive(:activerecord_below_5_2?) { false }
-      end
-
-      describe '#migrate' do
-        it 'should migrate all databases' do
-          if ActiveRecord.version >= Gem::Version.new('7.2.0')
-            allow(ActiveRecord::Base.connection_pool)
-          else
-            allow(ActiveRecord::Base.connection)
-          end.to receive(:migration_context) { migration_context_double }
-          expect(migration_context_double).to receive(:migrate).exactly(company_count).times
-
-          @rake['apartment:migrate'].invoke
-        end
-      end
+    describe '#rollback' do
+      it 'should rollback all dbs' do
+        if ActiveRecord.version >= Gem::Version.new('7.2.0')
+          allow(ActiveRecord::Base.connection_pool)
+        else
+          allow(ActiveRecord::Base.connection)
+        end.to receive(:migration_context) { migration_context_double }
+        expect(migration_context_double).to receive(:rollback).exactly(company_count).times
 
-      describe '#rollback' do
-        it 'should rollback all dbs' do
-          if ActiveRecord.version >= Gem::Version.new('7.2.0')
-            allow(ActiveRecord::Base.connection_pool)
-          else
-            allow(ActiveRecord::Base.connection)
-          end.to receive(:migration_context) { migration_context_double }
-          expect(migration_context_double).to receive(:rollback).exactly(company_count).times
-
-          @rake['apartment:rollback'].invoke
-        end
+        @rake['apartment:rollback'].invoke
       end
     end