[MSHARED-988] Remove CP duplicates

    Both org.eclipse.aether (old) and org.apache.maven.resolver
    lie in same package, these two pulled in cause classpath
    conflicyt. Get rid on old, use new one.
diff --git a/pom.xml b/pom.xml
index adece76..33baba2 100644
--- a/pom.xml
+++ b/pom.xml
@@ -57,7 +57,7 @@
   <properties>
     <maven.version>3.1.1</maven.version>
     <javaVersion>7</javaVersion>
-    <aether.version>0.9.0.M2</aether.version>
+    <resolver.version>1.4.2</resolver.version>
     <surefire.version>2.22.2</surefire.version>
     <checkstyle.violation.ignore>MethodLength</checkstyle.violation.ignore>
     <project.build.outputTimestamp>2021-02-14T00:03:59Z</project.build.outputTimestamp>
@@ -126,25 +126,15 @@
       <version>2.6</version>
     </dependency>
     <dependency>
-      <groupId>org.eclipse.aether</groupId>
-      <artifactId>aether-api</artifactId>
-      <version>${aether.version}</version>
-    </dependency>
-    <dependency>
-      <groupId>org.eclipse.aether</groupId>
-      <artifactId>aether-util</artifactId>
-      <version>${aether.version}</version>
-    </dependency>
-    <dependency>
       <groupId>org.apache.maven.resolver</groupId>
       <artifactId>maven-resolver-api</artifactId>
-      <version>1.4.2</version>
+      <version>${resolver.version}</version>
       <scope>provided</scope>
     </dependency>
     <dependency>
       <groupId>org.apache.maven.resolver</groupId>
       <artifactId>maven-resolver-util</artifactId>
-      <version>1.4.2</version>
+      <version>${resolver.version}</version>
       <scope>provided</scope>
     </dependency>