patch 9.0.1027: LGTM is soon shutting down

Problem:    LGTM is soon shutting down.
Solution:   Remove LGTM from CI. (closes #11671)
diff --git a/.lgtm.yml b/.lgtm.yml
deleted file mode 100644
index abe9ff6..0000000
--- a/.lgtm.yml
+++ /dev/null
@@ -1,4 +0,0 @@
-# Format of this file: https://lgtm.com/help/lgtm/lgtm.yml-configuration-file
-path_classifiers:
-  documentation:
-    - runtime/tutor/tutor*
diff --git a/Filelist b/Filelist
index 385ec68..67c215b 100644
--- a/Filelist
+++ b/Filelist
@@ -15,7 +15,6 @@
 		.github/dependabot.yml \
 		.gitignore \
 		.hgignore \
-		.lgtm.yml \
 		.appveyor.yml \
 		.codecov.yml \
 		ci/appveyor.bat \
diff --git a/src/version.c b/src/version.c
index e65729f..4e573bb 100644
--- a/src/version.c
+++ b/src/version.c
@@ -696,6 +696,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1027,
+/**/
     1026,
 /**/
     1025,