icinga2.spec: drop now not supported GCC 4.8

icinga2.spec

@@ -118,15 +118,9 @@ BuildRequires:  libyajl-devel
 %endif
 BuildRequires:  libedit-devel
 BuildRequires:  ncurses-devel
-%if "%{_vendor}" == "suse" && 0%{?suse_version} < 1210
-BuildRequires:  gcc48-c++
-BuildRequires:  libopenssl1-devel
-BuildRequires:  libstdc++48-devel
-%else
 BuildRequires:  gcc-c++
 BuildRequires:  libstdc++-devel
 BuildRequires:  openssl-devel
-%endif
 BuildRequires:  bison
 BuildRequires:  cmake
 BuildRequires:  flex >= 2.5.35
@@ -416,12 +410,6 @@ CMAKE_OPTS="$CMAKE_OPTS
 CMAKE_OPTS="$CMAKE_OPTS -DUSE_SYSTEMD=ON"
 %endif
 
-%if "%{_vendor}" == "suse" && 0%{?suse_version} < 1210
-# from package gcc48-c++
-export CC=gcc-4.8
-export CXX=g++-4.8
-%endif
-
 %if "%{?_buildhost}" != ""
 CMAKE_OPTS="$CMAKE_OPTS -DICINGA2_BUILD_HOST_NAME:STRING=%_buildhost"
 %endif