Remove the bundler-provided tasks that ladle doesn't use.

Rakefile

@@ -4,6 +4,7 @@ Bundler::GemHelper.install_tasks
 require 'rspec/core/rake_task'
 require 'yard'
 require 'yard/rake/yardoc_task'
+load File.expand_path("../tasks/remove_task.rake", __FILE__)
 
 RSpec::Core::RakeTask.new do |t|
   t.pattern = "spec/**/*_spec.rb"
@@ -30,6 +31,7 @@ end
 # build task is provided by bundler's gem helper
 task :build => [:clean, :compile]
 
+remove_task(:release)
 desc "Release both the Ruby and JRuby variants of Ladle"
 task :release do
   system("rake -f meta.rakefile release")

meta.rakefile

@@ -1,5 +1,6 @@
 require 'rake'
 require 'bundler'
+load File.expand_path("../tasks/remove_task.rake", __FILE__)
 
 # This rakefile depends on the main one and uses RVM to implement
 # tasks that require multiple platforms at once.
@@ -35,3 +36,4 @@ module Ladle
 end
 
 Ladle::MultiplatformGemHelper.new(File.dirname(__FILE__)).install
+remove_task(:install)

tasks/remove_task.rake

@@ -0,0 +1,9 @@
+Rake::TaskManager.class_eval do
+  def remove_task(task_name)
+    @tasks.delete(task_name.to_s)
+  end
+end
+
+def remove_task(name)
+  Rake.application.remove_task(name)
+end