Remove miscellaneous unused code (#2333)

1 files changed, 0 insertions, 36 deletions

diff --git a/src/theory/quantifiers/quantifiers_rewriter.cpp b/src/theory/quantifiers/quantifiers_rewriter.cpp
index 37451b776..cff14e0c3 100644
--- a/src/theory/quantifiers/quantifiers_rewriter.cpp
+++ b/src/theory/quantifiers/quantifiers_rewriter.cpp
@@ -32,25 +32,6 @@ namespace CVC4 {
 namespace theory {
 namespace quantifiers {
 
-bool QuantifiersRewriter::isClause( Node n ){
-  if( isLiteral( n ) ){
-    return true;
-  }else if( n.getKind()==NOT ){
-    return isCube( n[0] );
-  }else if( n.getKind()==OR ){
-    for( int i=0; i<(int)n.getNumChildren(); i++ ){
-      if( !isClause( n[i] ) ){
-        return false;
-      }
-    }
-    return true;
-  }else if( n.getKind()==IMPLIES ){
-    return isCube( n[0] ) && isClause( n[1] );
-  }else{
-    return false;
-  }
-}
-
 bool QuantifiersRewriter::isLiteral( Node n ){
   switch( n.getKind() ){
   case NOT:
@@ -73,23 +54,6 @@ bool QuantifiersRewriter::isLiteral( Node n ){
   return true;
 }
 
-bool QuantifiersRewriter::isCube( Node n ){
-  if( isLiteral( n ) ){
-    return true;
-  }else if( n.getKind()==NOT ){
-    return isClause( n[0] );
-  }else if( n.getKind()==AND ){
-    for( int i=0; i<(int)n.getNumChildren(); i++ ){
-      if( !isCube( n[i] ) ){
-        return false;
-      }
-    }
-    return true;
-  }else{
-    return false;
-  }
-}
-
 void QuantifiersRewriter::addNodeToOrBuilder( Node n, NodeBuilder<>& t ){
   if( n.getKind()==OR ){
     for( int i=0; i<(int)n.getNumChildren(); i++ ){