[pybliographer] build: Remove untracked file from Makefile

[Germán Poo-Caamaño <gpoo src gnome org>]

commit 4b6b0a62f6828d38616ca0b15643898d053e7bf9
Author: Germán Poo-Caamaño <gpoo gnome org>
Date:   Thu Mar 29 00:28:07 2018 -0300

    build: Remove untracked file from Makefile

 Makefile.am |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/Makefile.am b/Makefile.am
index c242bfb..2cbada9 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -32,7 +32,7 @@ bin_SCRIPTS = pybliographer
 
 pyb_DATA = pybrc.py
 
-EXTRA_DIST = m4/ChangeLog  \
+EXTRA_DIST = \
        pybliographer.in \
        $(pyb_DATA)