Clean up some files and docs

mrbgems/mruby-method/.travis.yml

-language: c
-compiler:
-  - gcc
-  - clang
-before_install:
-  - sudo apt-get -qq update
-install:
-  - sudo apt-get -qq install rake bison git gperf
-before_script:
-  - cd ../
-  - git clone https://github.com/mruby/mruby.git
-  - cd mruby
-  - cp -fp ../mruby-method/.travis_build_config.rb build_config.rb
-script:
-  - ruby minirake all test
-notifications:
-  email: false

mrbgems/mruby-method/.travis_build_config.rb

-MRuby::Build.new do |conf|
-  toolchain :gcc
-  enable_debug
-  conf.gembox 'default'
-  conf.gem '../mruby-method'
-end

mrbgems/mruby-method/README.md

 mruby-method
 ===
 
-[![Build Status](https://travis-ci.org/ksss/mruby-method.svg)](https://travis-ci.org/ksss/mruby-method)
-
 A implementetion of class **Method** and **UnboundMethod** for mruby
 
 ```ruby
@@ -10,22 +8,6 @@ p Enumerable.instance_method(:find_all).source_location
 #=> ["mruby/mruby/mrblib/enum.rb", 148]
 ```
 
-![https://raw.githubusercontent.com/ksss/mruby-method/master/find_all.png](https://raw.githubusercontent.com/ksss/mruby-method/master/find_all.png)
-
-# Installation
-
-in build_config.rb
-
-```ruby
-MRuby::Build.new do |conf|
-  enable_debug
-
-  conf.gem :mgem => "mruby-method"
-  # or
-  conf.gem :github => "ksss/mruby-method"
-end
-```
-
 # Note
 
 `source_location` method need this configuration in build_config.rb