Polish javadoc of LoggingSystemFactory

See gh-23387

spring-boot-project/spring-boot/src/main/java/org/springframework/boot/logging/LoggingSystemFactory.java

@@ -16,7 +16,6 @@
 
 package org.springframework.boot.logging;
 
-import org.springframework.boot.env.EnvironmentPostProcessorsFactory;
 import org.springframework.core.io.support.SpringFactoriesLoader;
 
 /**
@@ -29,7 +28,7 @@ import org.springframework.core.io.support.SpringFactoriesLoader;
 public interface LoggingSystemFactory {
 
 	/**
-	 * Return a logging system implementation or {@code null} if not logging system is
+	 * Return a logging system implementation or {@code null} if no logging system is
 	 * available.
 	 * @param classLoader the class loader to use
 	 * @return a logging system
@@ -37,9 +36,8 @@ public interface LoggingSystemFactory {
 	LoggingSystem getLoggingSystem(ClassLoader classLoader);
 
 	/**
-	 * Return a {@link EnvironmentPostProcessorsFactory} backed by
-	 * {@code spring.factories}.
-	 * @return an {@link LoggingSystemFactory} instance
+	 * Return a {@link LoggingSystemFactory} backed by {@code spring.factories}.
+	 * @return a {@link LoggingSystemFactory} instance
 	 */
 	static LoggingSystemFactory fromSpringFactories() {
 		return new DelegatingLoggingSystemFactory(