Remove unused variable.
diff --git a/libacc/acc.cpp b/libacc/acc.cpp
index 78f3306..aaddf44 100644
--- a/libacc/acc.cpp
+++ b/libacc/acc.cpp
@@ -3976,7 +3976,7 @@
     /* Recursive descent parser for binary operations.
      */
     void binaryOp(int level) {
-        intptr_t t, n, a;
+        intptr_t t, a;
         t = 0;
         if (level-- == 1)
             unary(true);
@@ -3984,7 +3984,6 @@
             binaryOp(level);
             a = 0;
             while (level == tokl) {
-                n = tok;
                 t = tokc;
                 next();