Revert "Modifies maven files to work with m2e"

This commit causes Eclipse to give a vaugue error message when creating a new Robot Java Project or Robot C++ Project.

This reverts commit 36241b0d6c.

Change-Id: I47b66c53604f07b6e40c0db6aa250b977d9ae903

eclipse-plugins/edu.wpi.first.wpilib.plugins.cpp/.classpath

@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<classpath>
+	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-1.7"/>
+	<classpathentry kind="con" path="org.eclipse.pde.core.requiredPlugins"/>
+	<classpathentry kind="src" path="src/main/java"/>
+	<classpathentry kind="output" path="bin"/>
+</classpath>

eclipse-plugins/edu.wpi.first.wpilib.plugins.cpp/.project

@@ -0,0 +1,28 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<projectDescription>
+	<name>edu.wpi.first.wpilib.plugins.cpp</name>
+	<comment></comment>
+	<projects>
+	</projects>
+	<buildSpec>
+		<buildCommand>
+			<name>org.eclipse.jdt.core.javabuilder</name>
+			<arguments>
+			</arguments>
+		</buildCommand>
+		<buildCommand>
+			<name>org.eclipse.pde.ManifestBuilder</name>
+			<arguments>
+			</arguments>
+		</buildCommand>
+		<buildCommand>
+			<name>org.eclipse.pde.SchemaBuilder</name>
+			<arguments>
+			</arguments>
+		</buildCommand>
+	</buildSpec>
+	<natures>
+		<nature>org.eclipse.pde.PluginNature</nature>
+		<nature>org.eclipse.jdt.core.javanature</nature>
+	</natures>
+</projectDescription>

eclipse-plugins/edu.wpi.first.wpilib.plugins.cpp/pom.xml

@@ -23,7 +23,6 @@
 				<filtering>true</filtering>
 			</resource>
 		</resources>
-		<pluginManagement>
 		<plugins>
 			<plugin>
 				<artifactId>maven-resources-plugin</artifactId>
@@ -134,7 +133,6 @@
 				</executions>
 			</plugin>
 		</plugins>
-		</pluginManagement>
 	</build>
 	<dependencies>
 		<dependency>