qa/distros: removed centos 8 from supported distros

Signed-off-by: Casey Bodley <cbodley@redhat.com>
(cherry picked from commit 449db416aa82df12b349ce10603c9646c88bde83)
(cherry picked from commit ec249a7549734befaa130dabcb0c14b91be8a4f4)

diff --git a/qa/distros/crimson-supported-all-distro/centos_8.yaml b/qa/distros/crimson-supported-all-distro/centos_8.yaml
deleted file mode 120000 (symlink)
index b7e6c9b..0000000
--- a/qa/distros/crimson-supported-all-distro/centos_8.yaml
+++ /dev/null
@@ -1 +0,0 @@
-../all/centos_8.yaml
\ No newline at end of file

diff --git a/qa/distros/supported-all-distro/centos_8.yaml b/qa/distros/supported-all-distro/centos_8.yaml
deleted file mode 120000 (symlink)
index b7e6c9b..0000000
--- a/qa/distros/supported-all-distro/centos_8.yaml
+++ /dev/null
@@ -1 +0,0 @@
-../all/centos_8.yaml
\ No newline at end of file

diff --git a/qa/distros/supported-random-distro$/centos_8.yaml b/qa/distros/supported-random-distro$/centos_8.yaml
deleted file mode 120000 (symlink)
index b7e6c9b..0000000
--- a/qa/distros/supported-random-distro$/centos_8.yaml
+++ /dev/null
@@ -1 +0,0 @@
-../all/centos_8.yaml
\ No newline at end of file

diff --git a/qa/distros/supported/centos_8.stream.yaml b/qa/distros/supported/centos_8.stream.yaml
deleted file mode 120000 (symlink)
index e96091b..0000000
--- a/qa/distros/supported/centos_8.stream.yaml
+++ /dev/null
@@ -1 +0,0 @@
-../all/centos_8.stream.yaml
\ No newline at end of file