[eog/gnome-3-16] Fix API docs build without libexif

[Felix Riemann <friemann src gnome org>]

commit 48cd1348877f2e56f66160fa196c88770ac48f2f
Author: Felix Riemann <friemann gnome org>
Date:   Mon Jun 22 19:42:06 2015 +0200

    Fix API docs build without libexif

 doc/reference/Makefile.am |    2 --
 1 files changed, 0 insertions(+), 2 deletions(-)
---
diff --git a/doc/reference/Makefile.am b/doc/reference/Makefile.am
index e97a65a..cdf7106 100644
--- a/doc/reference/Makefile.am
+++ b/doc/reference/Makefile.am
@@ -77,11 +77,9 @@ IGNORE_HFILES= \
        eog-print-preview.h
 
 if !HAVE_EXIF
-if !HAVE_EXEMPI
 IGNORE_HFILES +=                       \
        eog-exif-util.h
 endif
-endif
 
 # Images to copy into HTML directory.
 # e.g. HTML_IMAGES=$(top_srcdir)/gtk/stock-icons/stock_about_24.png