Revert "centos7: pull docker image from docker hub"

This reverts commit 8e3391a.

Signed-off-by: Shizuo Fujita <[email protected]>

Author: Watson1978

lib/package-task.rb

@@ -114,8 +114,6 @@ def run_docker(os, architecture=nil)
     id = os
     id = "#{id}-#{architecture}" if architecture
     docker_tag = "#{@package}-#{id}"
-    # TODO: Fix docker tag name
-    docker_tag = "watson1978/#{docker_tag}" if os == "centos-7"
     build_command_line = [
       "docker",
       "build",
@@ -151,14 +149,7 @@ def run_docker(os, architecture=nil)
     build_command_line << docker_context
     run_command_line.concat([docker_tag, "/host/build.sh"])
 
-    if os == "centos-7"
-      if ENV["BUILD_DOCKER_IMAGE_ONLY"]
-        sh(*build_command_line)
-        exit
-      end
-    else
-      sh(*build_command_line)
-    end
+    sh(*build_command_line)
     sh(*run_command_line)
   end