[LyX/master] Remove duplicate header

[Juergen Spitzmueller]

commit c4c62f718589e158b6f14d8d63d9b5066c20487f
Author: Juergen Spitzmueller <spitz at lyx.org>
Date:   Sun Feb 14 19:03:31 2021 +0100

    Remove duplicate header
---
 src/frontends/qt/GuiSearch.cpp |    1 -
 1 files changed, 0 insertions(+), 1 deletions(-)

diff --git a/src/frontends/qt/GuiSearch.cpp b/src/frontends/qt/GuiSearch.cpp
index 5aec60b..f61c6c3 100644
--- a/src/frontends/qt/GuiSearch.cpp
+++ b/src/frontends/qt/GuiSearch.cpp
@@ -29,7 +29,6 @@
 
 #include "support/debug.h"
 #include "support/gettext.h"
-#include "support/debug.h"
 #include "frontends/alert.h"
 #include "frontends/Clipboard.h"