Remove unused let-binding for point

Fixes:

    purescript-navigate-imports.el:101:12: Error: Unused lexical variable ‘point’
    purescript-simple-indent.el:146:10: Error: Unused lexical variable ‘point’

purescript-navigate-imports.el

@@ -98,10 +98,9 @@
                     (purescript-navigate-imports-after-imports-p) ;; This one just speeds it up.
                     (purescript-navigate-imports-line)))
       (forward-line))
-    (let ((point (point)))
-      (if (purescript-navigate-imports-line)
-          (point)
-        nil))))
+    (if (purescript-navigate-imports-line)
+        (point)
+      nil)))
 
 (defun purescript-navigate-imports-line ()
   "Try to match the current line as a regexp."

purescript-simple-indent.el

@@ -143,19 +143,18 @@ column, `tab-to-tab-stop' is done instead."
 (defun purescript-simple-indent-newline-same-col ()
   "Make a newline and go to the same column as the current line."
   (interactive)
-  (let ((point (point)))
-    (let ((start-end
-           (save-excursion
-             (let* ((start (line-beginning-position))
-                    (end (progn (goto-char start)
-                                (search-forward-regexp
-                                 "[^ ]" (line-end-position) t 1))))
-               (when end (cons start (1- end)))))))
-      (if start-end
-          (progn (newline)
-                 (insert (buffer-substring-no-properties
-                          (car start-end) (cdr start-end))))
-        (newline)))))
+  (let ((start-end
+         (save-excursion
+           (let* ((start (line-beginning-position))
+                  (end (progn (goto-char start)
+                              (search-forward-regexp
+                               "[^ ]" (line-end-position) t 1))))
+             (when end (cons start (1- end)))))))
+    (if start-end
+        (progn (newline)
+               (insert (buffer-substring-no-properties
+                        (car start-end) (cdr start-end))))
+      (newline))))
 
 (defun purescript-simple-indent-newline-indent ()
   "Make a newline on the current column and indent on step."