Remove ~/.mspecrc handling

* It seems unnecessary/unused.
* It can cause issues, see #55

Author: eregon

lib/mspec/utils/script.rb

@@ -84,13 +84,7 @@ def try_load(target)
 
     names.each do |name|
       config[:path].each do |dir|
-        begin
-          file = File.expand_path name, dir
-        rescue ArgumentError => e
-          # File.expand_path can issue error e.g. if HOME is not available
-          warn "File.expand_path(#{name}, #{dir}) failed with: #{e}"
-          next
-        end
+        file = File.expand_path name, dir
         if @loaded.include?(file)
           return true
         elsif File.exist? file
@@ -289,7 +283,6 @@ def self.main(child_process = true)
 
     script = new
     script.load_default
-    script.try_load '~/.mspecrc'
     script.options
     script.signals
     script.register

spec/utils/script_spec.rb

@@ -96,11 +96,6 @@ class MSSClass < MSpecScript; end
     MSpecScript.main
   end
 
-  it "attempts to load the '~/.mspecrc' script" do
-    expect(@script).to receive(:try_load).with('~/.mspecrc')
-    MSpecScript.main
-  end
-
   it "calls the #options method on the script" do
     expect(@script).to receive(:options)
     MSpecScript.main