rpm: removed RHEL/CentOS 5 support.

rpm/SPECS/Makefile

diff --git a/rpm/SPECS/Makefile b/rpm/SPECS/Makefile
index 6133cc1..f1b3ddc 100644
--- a/rpm/SPECS/Makefile
+++ b/rpm/SPECS/Makefile
@@ -163,7 +163,7 @@
 # perl
 
 define MODULE_DEFINITIONS_perl
-%if (0%{?rhel} \&\& 0%{?rhel} == 5) || (0%{?suse_version} == 1315)
+%if (0%{?suse_version} == 1315)
 BuildRequires: perl
 %else
 BuildRequires: perl-devel

rpm/SPECS/nginx.spec.in

diff --git a/rpm/SPECS/nginx.spec.in b/rpm/SPECS/nginx.spec.in
index a93f9d5..68bddde 100644
--- a/rpm/SPECS/nginx.spec.in
+++ b/rpm/SPECS/nginx.spec.in
@@ -7,15 +7,6 @@
 # distribution specific definitions
 %define use_systemd (0%{?fedora} && 0%{?fedora} >= 18) || (0%{?rhel} && 0%{?rhel} >= 7) || (0%{?suse_version} == 1315)
 
-%if 0%{?rhel} == 5
-%define _group System Environment/Daemons
-Requires(pre): shadow-utils
-Requires: initscripts >= 8.36
-Requires(post): chkconfig
-Requires: openssl
-BuildRequires: openssl-devel
-%endif
-
 %if 0%{?rhel} == 6
 %define _group System Environment/Daemons
 Requires(pre): shadow-utils