reverting fix #1919

Author: bnasslahsen

springdoc-openapi-starter-common/src/main/java/org/springdoc/core/conditions/MultipleOpenApiGroupsCondition.java

@@ -24,8 +24,6 @@
 package org.springdoc.core.conditions;
 
 
-import java.util.Collection;
-
 import org.springdoc.core.models.GroupedOpenApi;
 
 import org.springframework.boot.autoconfigure.condition.AnyNestedCondition;
@@ -61,9 +59,4 @@ static class OnGroupedOpenApiBean {}
 	@ConditionalOnProperty(name = GROUP_CONFIG_FIRST_PROPERTY)
 	static class OnGroupConfigProperty {}
 
-	/**
-	 * The type On list grouped open api bean.
-	 */
-	@ConditionalOnBean(value = GroupedOpenApi.class, parameterizedContainer = Collection.class)
-	static class OnListGroupedOpenApiBean {}
 }