GUACAMOLE-1298: Remove guacamole-client .tar.gz archive build.

Children of the parent project will inherit the parent's build plugins,
which breaks everything when each child project attempts to build its
own source archive.
diff --git a/pom.xml b/pom.xml
index a8a10dd..d8c4291 100644
--- a/pom.xml
+++ b/pom.xml
@@ -86,34 +86,6 @@
     <build>
         <plugins>
 
-            <!-- Assembly plugin - for easy distribution -->
-            <plugin>
-                <artifactId>maven-assembly-plugin</artifactId>
-                <version>2.5.3</version>
-
-                <!-- Build project archive -->
-                <configuration>
-                    <finalName>${project.artifactId}-${project.version}</finalName>
-                    <appendAssemblyId>false</appendAssemblyId>
-                    <tarLongFileMode>gnu</tarLongFileMode>
-                    <descriptors>
-                        <descriptor>project-assembly.xml</descriptor>
-                    </descriptors>
-                </configuration>
-
-                <!-- Bind archive build to package phase -->
-                <executions>
-                    <execution>
-                        <id>make-source-archive</id>
-                        <phase>package</phase>
-                        <goals>
-                            <goal>single</goal>
-                        </goals>
-                    </execution>
-                </executions>
-
-            </plugin>
-
             <!-- Verify format using Apache RAT -->
             <plugin>
                 <groupId>org.apache.rat</groupId>
diff --git a/project-assembly.xml b/project-assembly.xml
deleted file mode 100644
index 0258fea..0000000
--- a/project-assembly.xml
+++ /dev/null
@@ -1,54 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<!--
-    Licensed to the Apache Software Foundation (ASF) under one
-    or more contributor license agreements.  See the NOTICE file
-    distributed with this work for additional information
-    regarding copyright ownership.  The ASF licenses this file
-    to you under the Apache License, Version 2.0 (the
-    "License"); you may not use this file except in compliance
-    with the License.  You may obtain a copy of the License at
-
-      http://www.apache.org/licenses/LICENSE-2.0
-
-    Unless required by applicable law or agreed to in writing,
-    software distributed under the License is distributed on an
-    "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
-    KIND, either express or implied.  See the License for the
-    specific language governing permissions and limitations
-    under the License.
--->
-<assembly
-    xmlns="http://maven.apache.org/plugins/maven-assembly-plugin/assembly/1.1.0"
-    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/plugins/maven-assembly-plugin/assembly/1.1.0
-    http://maven.apache.org/xsd/assembly-1.1.0.xsd">
-
-    <id>project</id>
-    <formats>
-        <format>tar.gz</format>
-    </formats>
-
-    <fileSets>
-
-        <!-- Include everything except generated files / VCS metadata  -->
-        <fileSet>
-            <directory>${project.basedir}</directory>
-            <useDefaultExcludes>true</useDefaultExcludes>
-            <excludes>
-                <exclude>**/*.log</exclude>
-                <exclude>**/${project.build.directory}/**</exclude>
-            </excludes>
-        </fileSet>
-
-        <!-- Explicitly include .gitignore (parsed by RAT) -->
-        <fileSet>
-            <directory>${project.basedir}</directory>
-            <useDefaultExcludes>false</useDefaultExcludes>
-            <includes>
-                <include>**/.gitignore</include>
-            </includes>
-        </fileSet>
-
-    </fileSets>
-
-</assembly>