spdk.spec: remove python2 references

The spec file was originally created when SPDK Python
scripts still worked with python2.  That changed
several releases ago.  So remove python2 references
from the spec file to indicate that SPDK scripts
only work with python3.

Signed-off-by: Jim Harris <james.r.harris@intel.com>
Change-Id: I413c684772e6cb45dedca8977c2c784a55026a35
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/1219
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-by: Aleksey Marchuk <alexeymar@mellanox.com>

pkg/spdk.spec

@@ -16,13 +16,6 @@ Summary: Set of libraries and utilities for high performance user-mode storage
 %define install_sbindir %{buildroot}/%{_sbindir}
 %define install_docdir %{buildroot}/%{_docdir}/%{name}
 
-# Distros that don't support python3 will use python2
-%if "%{dist}" == ".el7"
-%define use_python2 1
-%else
-%define use_python2 0
-%endif
-
 License: BSD
 
 # Only x86_64 is supported
@@ -62,11 +55,7 @@ developing applications with the Storage Performance Development Kit.
 
 %package tools
 Summary: Storage Performance Development Kit tools files
-%if "%{use_python2}" == "0"
 Requires: %{name}%{?_isa} = %{package_version} python3 python3-configshell python3-pexpect
-%else
-Requires: %{name}%{?_isa} = %{package_version} python python-configshell pexpect
-%endif
 BuildArch: noarch
 
 %description tools
@@ -122,11 +111,6 @@ find scripts -type f -regextype egrep -regex '.*(spdkcli|rpc).*[.]py' \
 find %{install_datadir}/scripts -type f -regextype egrep -regex '.*([.]py|[.]sh)' \
 	-exec sed -i -E '1s@#!/usr/bin/env (.*)@#!/usr/bin/\1@' {} +
 
-%if "%{use_python2}" == "1"
-find %{install_datadir}/scripts -type f -regextype egrep -regex '.*([.]py)' \
-	-exec sed -i -E '1s@#!/usr/bin/python3@#!/usr/bin/python2@' {} +
-%endif
-
 # synlinks to tools
 mkdir -p %{install_sbindir}
 ln -sf -r %{install_datadir}/scripts/rpc.py %{install_sbindir}/%{name}-rpc