Copied verbatim from upstream repository.

From cee22450ee30e79952f594796721dc6b17798ee6 Mon Sep 17 00:00:00 2001
From: Sascha Wilde <wilde@sha-bang.de>
Date: Fri, 23 Sep 2016 15:35:59 +0200
Subject: [PATCH] Removed unused lexical variables.

---
 haskell-lexeme.el  | 3 +--
 haskell-process.el | 4 +---
 2 files changed, 2 insertions(+), 5 deletions(-)

diff --git a/haskell-lexeme.el b/haskell-lexeme.el
index 4256a79..b832560 100644
--- a/haskell-lexeme.el
+++ b/haskell-lexeme.el
@@ -138,8 +138,7 @@ When match is successful, match-data will contain:
   (match-text 2) - whole qualified identifier
   (match-text 3) - unqualified part of identifier
   (match-text 4) - closing backtick"
-  (let ((begin (point))
-        (match-data-old (match-data))
+  (let ((match-data-old (match-data))
         first-backtick-start
         last-backtick-start
         qid-start
diff --git a/haskell-process.el b/haskell-process.el
index b4efba2..4f3f859 100644
--- a/haskell-process.el
+++ b/haskell-process.el
@@ -160,9 +160,7 @@ HPTYPE is the result of calling `'haskell-process-type`' function."
 (defun haskell-process-log (msg)
   "Effective append MSG to the process log (if enabled)."
   (when haskell-process-log
-    (let* ((append-to (get-buffer-create "*haskell-process-log*"))
-           (windows (get-buffer-window-list append-to t t))
-           move-point-in-windows)
+    (let* ((append-to (get-buffer-create "*haskell-process-log*")))
       (with-current-buffer append-to
         ;; point should follow insertion so that it stays at the end
         ;; of the buffer
-- 
2.18.0