Fix assembly that collects all of the starter poms

Closes gh-5267

spring-boot-docs/pom.xml

@@ -39,12 +39,6 @@
 			<groupId>org.springframework.boot</groupId>
 			<artifactId>spring-boot-loader-tools</artifactId>
 		</dependency>
-		<dependency>
-			<groupId>org.springframework.boot</groupId>
-			<artifactId>spring-boot-starters</artifactId>
-			<type>pom</type>
-			<version>${project.version}</version>
-		</dependency>
 		<!-- Optional deps required when generating Javadoc with Java 8 -->
 		<dependency>
 			<groupId>ch.qos.logback</groupId>

spring-boot-starters/src/main/assembly/starter-poms-assembly.xml

@@ -8,7 +8,6 @@
 	<includeBaseDirectory>false</includeBaseDirectory>
 	<moduleSets>
 		<moduleSet>
-			<useAllReactorProjects>true</useAllReactorProjects>
 			<sources>
 				<fileSets>
 					<fileSet>