Removed empty plugin.xml

plugins/org.yakindu.sct.generator.genmodel/build.properties

@@ -3,4 +3,5 @@ source.. = src/,\
           xtend-gen/
 bin.includes = META-INF/,\
                .,\
-               plugin.xml
+               
+

plugins/org.yakindu.sct.generator.genmodel/plugin.xml

@@ -1,5 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<?eclipse version="3.4"?>
-<plugin>
-  
-</plugin>