Revert "use rvmsudo when available"

This reverts commit bb63504.

Unfortunatly gem_package can't find gems it installs when
running under rvmsudo. In search of a New Plan.

lib/soloist/config.rb

@@ -95,18 +95,13 @@ def debug?
 
     private
     def conditional_sudo(command)
-      sudo_command = rvm? ? "rvmsudo_secure_path=1 rvmsudo" : "sudo"
-      root? ? command : "#{sudo_command} -E #{command}"
+      root? ? command : "sudo -E #{command}"
     end
 
     def root?
       Process.uid == 0
     end
 
-    def rvm?
-      `which rvm`.length > 0
-    end
-
     def royal_crown_cookbooks_directory
       File.expand_path("cookbooks", royal_crown_path)
     end

spec/lib/soloist/cli_spec.rb

@@ -92,28 +92,11 @@
         end
 
         context "when the user is not root" do
-          context "when rvm is not present" do
-            before do
-              cli.soloist_config.stub(:rvm?).and_return(false)
-            end
-            it "creates the cache path using sudo" do
-              cli.soloist_config.should_receive(:exec) do |command|
-                command.should =~ /^sudo -E/
-              end
-              cli.chef
-            end
-          end
-
-          context "when rvm is present" do
-            before do
-              cli.soloist_config.stub(:rvm?).and_return(true)
-            end
-            it "creates the cache path using rvmsudo" do
-              cli.soloist_config.should_receive(:exec) do |command|
-                command.should =~ /rvmsudo -E/
-              end
-              cli.chef
+          it "creates the cache path using sudo" do
+            cli.soloist_config.should_receive(:exec) do |command|
+              command.should =~ /^sudo -E/
             end
+            cli.chef
           end
         end