Decouple definitions of Synthesizer/SynthesisContext

src/main/scala/leon/synthesis/SynthesisContext.scala

@@ -31,15 +31,3 @@ class SynthesisContext(
   }
 
 }
-
-object SynthesisContext {
-
-  def fromSynthesizer(synth: Synthesizer) = {
-    new SynthesisContext(
-      synth.context,
-      synth.settings,
-      synth.ci.fd,
-      synth.program
-    )
-  }
-}

src/main/scala/leon/synthesis/Synthesizer.scala

@@ -23,7 +23,7 @@ class Synthesizer(val context : LeonContext,
 
   val reporter = context.reporter
 
-  lazy val sctx = SynthesisContext.fromSynthesizer(this)
+  lazy val sctx = new SynthesisContext(context, settings, ci.fd, program)
 
   implicit val debugSection = leon.utils.DebugSectionSynthesis