gnu: lyx: Remove obsolete patch.

* gnu/packages/patches/lyx-2.2.3-fix-test.patch: Remove file.
* gnu/local.mk (dist_patch_DATA): Remove it.

gnu/local.mk

@@ -1030,7 +1030,6 @@ dist_patch_DATA =						\
   %D%/packages/patches/luminance-hdr-qt-printer.patch		\
   %D%/packages/patches/lvm2-static-link.patch			\
   %D%/packages/patches/lxsession-use-gapplication.patch         \
-  %D%/packages/patches/lyx-2.2.3-fix-test.patch			\
   %D%/packages/patches/make-glibc-compat.patch			\
   %D%/packages/patches/make-impure-dirs.patch			\
   %D%/packages/patches/mariadb-client-test-32bit.patch		\

gnu/packages/patches/lyx-2.2.3-fix-test.patch

@@ -1,13 +0,0 @@
-See https://www.lyx.org/trac/ticket/10800#comment:17
-diff --git a/src/tex2lyx/test/test-structure.lyx.lyx b/src/tex2lyx/test/test-structure.lyx.lyx
-index feff755cd2..2c7f2ace5c 100644
---- a/src/tex2lyx/test/test-structure.lyx.lyx
-+++ b/src/tex2lyx/test/test-structure.lyx.lyx
-@@ -212,7 +212,7 @@ This causes the
- \begin_inset Flex Flex:Strong
- status collapsed
- 
--\begin_layout Standard
-+\begin_layout Plain Layout
- logikalmkup
- \end_layout