Don't invoke the init target when cleaning.

I'm sure there was a good reason for this at some point, but downloading
and installing all of our dependencies before wiping out the dependencies
folder seems.... silly.

Change-Id: I16f681e6aa16b3370f4377d9519e54e18c66a241
Reviewed-on: http://gerrit.dmdirc.com/3676
Reviewed-by: Greg Holmes <greg@dmdirc.com>
Automatic-Compile: DMDirc Build Manager

nbproject/build-impl.xml

@@ -681,8 +681,8 @@ is divided into following sections:
                 CLEANUP SECTION
                 ===============
             -->
-    <target depends="init" name="deps-clean" unless="no.deps"/>
-    <target depends="init" name="-do-clean">
+    <target name="deps-clean" unless="no.deps"/>
+    <target name="-do-clean">
         <delete dir="${build.dir}"/>
         <delete dir="${dist.dir}"/>
     </target>
@@ -690,5 +690,5 @@ is divided into following sections:
         <!-- Empty placeholder for easier customization. -->
         <!-- You can override this target in the ../build.xml file. -->
     </target>
-    <target depends="init,deps-clean,-do-clean,-post-clean" description="Clean build products." name="clean"/>
+    <target depends="deps-clean,-do-clean,-post-clean" description="Clean build products." name="clean"/>
 </project>