Fix broken changelog

Signed-off-by: Ritesh Raj Sarraf <ritesh.sarraf@collabora.com>

debian/changelog

@@ -21,10 +21,6 @@ initramfs-tools (0.139) unstable; urgency=medium
 
 initramfs-tools (0.138) unstable; urgency=medium
 
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- -- Andrew Lee (李健秋) <andrew.lee@collabora.co.uk>  Mon, 23 Sep 2019 14:05:16 +0800
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-
   [ Ben Hutchings ]
   * [0b034b4] docs/maintainer-notes.md: Delete the horizontal rules
   * [ba883cb] docs/maintainer-notes.md: Use Gitlab markup for table of contents