Revert "[maven-release-plugin] prepare for next development iteration"

This reverts commit ab6fd5e74e80f56858ab643a5863f8d6299b42bc.
diff --git a/hyracks-fullstack/hyracks/hyracks-hdfs/hyracks-hdfs-1.x/pom.xml b/hyracks-fullstack/hyracks/hyracks-hdfs/hyracks-hdfs-1.x/pom.xml
index 9fab861..33afd8f 100644
--- a/hyracks-fullstack/hyracks/hyracks-hdfs/hyracks-hdfs-1.x/pom.xml
+++ b/hyracks-fullstack/hyracks/hyracks-hdfs/hyracks-hdfs-1.x/pom.xml
@@ -24,7 +24,7 @@
   <parent>
     <artifactId>hyracks-hdfs</artifactId>
     <groupId>org.apache.hyracks</groupId>
-    <version>0.3.1-SNAPSHOT</version>
+    <version>0.3.0</version>
   </parent>
   <properties>
     <root.dir>${basedir}/../../..</root.dir>
diff --git a/hyracks-fullstack/hyracks/hyracks-hdfs/hyracks-hdfs-2.x/pom.xml b/hyracks-fullstack/hyracks/hyracks-hdfs/hyracks-hdfs-2.x/pom.xml
index f9dfcd7..135bd01 100644
--- a/hyracks-fullstack/hyracks/hyracks-hdfs/hyracks-hdfs-2.x/pom.xml
+++ b/hyracks-fullstack/hyracks/hyracks-hdfs/hyracks-hdfs-2.x/pom.xml
@@ -24,7 +24,7 @@
   <parent>
     <artifactId>hyracks-hdfs</artifactId>
     <groupId>org.apache.hyracks</groupId>
-    <version>0.3.1-SNAPSHOT</version>
+    <version>0.3.0</version>
   </parent>
   <properties>
     <root.dir>${basedir}/../../..</root.dir>
diff --git a/hyracks-fullstack/hyracks/hyracks-hdfs/hyracks-hdfs-core/pom.xml b/hyracks-fullstack/hyracks/hyracks-hdfs/hyracks-hdfs-core/pom.xml
index 9c25d13..52894cd 100644
--- a/hyracks-fullstack/hyracks/hyracks-hdfs/hyracks-hdfs-core/pom.xml
+++ b/hyracks-fullstack/hyracks/hyracks-hdfs/hyracks-hdfs-core/pom.xml
@@ -25,7 +25,7 @@
   <parent>
     <artifactId>hyracks-hdfs</artifactId>
     <groupId>org.apache.hyracks</groupId>
-    <version>0.3.1-SNAPSHOT</version>
+    <version>0.3.0</version>
   </parent>
   <properties>
     <root.dir>${basedir}/../../..</root.dir>
@@ -181,7 +181,7 @@
         <dependency>
           <groupId>org.apache.hyracks</groupId>
           <artifactId>hyracks-control-common</artifactId>
-          <version>0.3.1-SNAPSHOT</version>
+          <version>0.3.0</version>
           <scope>test</scope>
         </dependency>
         <dependency>
diff --git a/hyracks-fullstack/hyracks/hyracks-hdfs/pom.xml b/hyracks-fullstack/hyracks/hyracks-hdfs/pom.xml
index 23f5eb2..f6dbfe2 100644
--- a/hyracks-fullstack/hyracks/hyracks-hdfs/pom.xml
+++ b/hyracks-fullstack/hyracks/hyracks-hdfs/pom.xml
@@ -26,7 +26,7 @@
   <parent>
     <groupId>org.apache.hyracks</groupId>
     <artifactId>hyracks</artifactId>
-    <version>0.3.1-SNAPSHOT</version>
+    <version>0.3.0</version>
   </parent>
 
   <properties>