Minor cleanup in dependencies (#1346)

Author: wind57

pom.xml

@@ -68,14 +68,6 @@
 		<spring-cloud-bus.version>4.0.2-SNAPSHOT</spring-cloud-bus.version>
 		<spring-cloud-contract.version>4.0.3-SNAPSHOT</spring-cloud-contract.version>
 
-		<!-- Maven Plugin Versions -->
-		<maven-compiler-plugin.version>3.5</maven-compiler-plugin.version>
-		<maven-deploy-plugin.version>2.8.2</maven-deploy-plugin.version>
-		<maven-failsafe-plugin.version>2.22.2</maven-failsafe-plugin.version>
-		<maven-surefire-plugin.version>2.22.2</maven-surefire-plugin.version>
-		<groovy.version>2.4.12</groovy.version>
-		<restassured.version>3.0.2</restassured.version>
-
 		<maven-checkstyle-plugin.failsOnError>true</maven-checkstyle-plugin.failsOnError>
 		<maven-checkstyle-plugin.failsOnViolation>true
 		</maven-checkstyle-plugin.failsOnViolation>
@@ -180,7 +172,6 @@
 			<plugin>
 				<groupId>org.apache.maven.plugins</groupId>
 				<artifactId>maven-compiler-plugin</artifactId>
-				<version>${maven-compiler-plugin.version}</version>
 				<inherited>true</inherited>
 				<configuration>
 					<source>17</source>
@@ -191,7 +182,6 @@
 			<plugin>
 				<groupId>org.apache.maven.plugins</groupId>
 				<artifactId>maven-surefire-plugin</artifactId>
-				<version>${maven-surefire-plugin.version}</version>
 				<inherited>true</inherited>
 				<configuration>
 					<parallel>all</parallel>