[MSPARK-331] Remove snapshot versions of mapr dependencies from Spark-2.3.1 (apache#371)

Author: ekrivokonmapr

external/maprdb/pom.xml

@@ -122,13 +122,13 @@
         <dependency>
             <groupId>com.mapr.db</groupId>
             <artifactId>maprdb</artifactId>
-            <version>6.1.0-mapr-SNAPSHOT</version>
+            <version>6.1.0-mapr</version>
             <scope>provided</scope>
         </dependency>
         <dependency>
             <groupId>com.mapr.db</groupId>
             <artifactId>maprdb-mapreduce</artifactId>
-            <version>6.1.0-mapr-SNAPSHOT</version>
+            <version>6.1.0-mapr</version>
             <scope>provided</scope>
         </dependency>
         <dependency>
@@ -146,7 +146,7 @@
         <dependency>
             <groupId>com.mapr</groupId>
             <artifactId>mapr-java-utils</artifactId>
-            <version>6.1.0-mapr-SNAPSHOT</version>
+            <version>6.1.0-mapr</version>
             <classifier>tests</classifier>
             <scope>test</scope>
         </dependency>

pom.xml

@@ -126,11 +126,11 @@
     <slf4j.version>1.7.16</slf4j.version>
     <log4j.version>1.2.17</log4j.version>
     <hadoop.version>2.7.0-mapr-1803</hadoop.version>
-    <maprfs.version>6.1.0-mapr-SNAPSHOT</maprfs.version>
+    <maprfs.version>6.1.0-mapr</maprfs.version>
     <protobuf.version>2.5.0</protobuf.version>
     <yarn.version>${hadoop.version}</yarn.version>
     <flume.version>1.6.0</flume.version>
-    <zookeeper.version>3.4.11-mapr-SNAPSHOT</zookeeper.version>
+    <zookeeper.version>3.4.11-mapr-1808</zookeeper.version>
     <curator.version>2.7.1</curator.version>
     <hive.group>org.apache.hive</hive.group>
     <!-- Version used in Maven Hive dependency -->
@@ -262,17 +262,6 @@
         <enabled>false</enabled>
       </snapshots>
     </repository>
-    <repository>
-      <id>mapr-repo_cv</id>
-      <name>MapR Repository_cv</name>
-      <url>http://repository_cv.mapr.com/maven/</url>
-      <releases>
-        <enabled>true</enabled>
-      </releases>
-      <snapshots>
-        <enabled>true</enabled>
-      </snapshots>
-    </repository>
   </repositories>
   <pluginRepositories>
     <pluginRepository>