Remove excessively backpatched gitignore files

These caused directories from future releases to appear in the
backbranch tree.

diff --git a/contrib/pg_archivecleanup/.gitignore b/contrib/pg_archivecleanup/.gitignore
deleted file mode 100644 (file)
index 8040890..0000000
--- a/contrib/pg_archivecleanup/.gitignore
+++ /dev/null
@@ -1 +0,0 @@
-/pg_archivecleanup

diff --git a/contrib/pg_upgrade/.gitignore b/contrib/pg_upgrade/.gitignore
deleted file mode 100644 (file)
index 03ec737..0000000
--- a/contrib/pg_upgrade/.gitignore
+++ /dev/null
@@ -1 +0,0 @@
-/pg_upgrade

diff --git a/contrib/unaccent/.gitignore b/contrib/unaccent/.gitignore
deleted file mode 100644 (file)
index 30a8749..0000000
--- a/contrib/unaccent/.gitignore
+++ /dev/null
@@ -1 +0,0 @@
-/unaccent.sql