chore(core): Removed broken reference to eclipse paho (#6130)

removed paho from core

Author: salvatore-coppola

kura/org.eclipse.kura.core/META-INF/MANIFEST.MF

@@ -52,5 +52,4 @@ Import-Package: javax.crypto,
  org.osgi.util.tracker;version="1.5.0",
  org.quartz;version="2.3.2",
  org.slf4j;version="1.6.4"
-Bundle-ClassPath: .,
- lib/org.eclipse.paho.client.mqttv3-1.2.1.k2.jar
+Bundle-ClassPath: .

kura/org.eclipse.kura.core/build.properties

@@ -11,8 +11,7 @@
 #   Eurotech
 #
 
-source.. = src/main/java/,\
-           src/main/resources/
+source.. = src/main/java/
 output.. = target/classes/
 bin.includes = META-INF/,\
                .,\