systemd: remove configuration check prior to the start for debug service as well.

debian/nginx-debug.service

diff --git a/debian/nginx-debug.service b/debian/nginx-debug.service
index f345ce5..142d2a6 100644
--- a/debian/nginx-debug.service
+++ b/debian/nginx-debug.service
@@ -7,7 +7,6 @@
 [Service]
 Type=forking
 PIDFile=/var/run/nginx.pid
-ExecStartPre=/usr/sbin/nginx-debug -t -c /etc/nginx/nginx.conf
 ExecStart=/usr/sbin/nginx-debug -c /etc/nginx/nginx.conf
 ExecReload=/bin/kill -s HUP $MAINPID
 ExecStop=/bin/kill -s TERM $MAINPID

rpm/SOURCES/nginx-debug.service

diff --git a/rpm/SOURCES/nginx-debug.service b/rpm/SOURCES/nginx-debug.service
index f345ce5..142d2a6 100644
--- a/rpm/SOURCES/nginx-debug.service
+++ b/rpm/SOURCES/nginx-debug.service
@@ -7,7 +7,6 @@
 [Service]
 Type=forking
 PIDFile=/var/run/nginx.pid
-ExecStartPre=/usr/sbin/nginx-debug -t -c /etc/nginx/nginx.conf
 ExecStart=/usr/sbin/nginx-debug -c /etc/nginx/nginx.conf
 ExecReload=/bin/kill -s HUP $MAINPID
 ExecStop=/bin/kill -s TERM $MAINPID