Change "dummy" to "unused" in log output for consistency

Signed-off-by: Graham <gpe@openrs2.dev>

deob/src/main/java/dev/openrs2/deob/transform/UnusedArgTransformer.kt

@@ -162,7 +162,7 @@ class UnusedArgTransformer : Transformer() {
     }
 
     override fun postTransform(classPath: ClassPath) {
-        logger.info { "Removed $deletedArgs dummy arguments" }
+        logger.info { "Removed $deletedArgs unused arguments" }
     }
 
     companion object {

deob/src/main/java/dev/openrs2/deob/transform/UnusedLocalTransformer.kt

@@ -49,7 +49,7 @@ class UnusedLocalTransformer : Transformer() {
     }
 
     override fun postTransform(classPath: ClassPath) {
-        logger.info { "Removed $localsRemoved dummy local variables" }
+        logger.info { "Removed $localsRemoved unused local variables" }
     }
 
     companion object {