Remove code for running examples

Preparing to add runner.

src/spectator.cr

@@ -13,10 +13,6 @@ module Spectator
     {% debug %}
   end
 
-  macro _spec_add_example(example)
-    {{example.id}}.run
-  end
-
   at_exit do
     # TODO
   end

src/spectator/dsl.cr

@@ -1,9 +1,5 @@
 require "./example_group"
 
-private macro _spec_add_example(example)
-  @examples << example
-end
-
 module Spectator
   module DSL
     macro describe(what, type = "Describe", &block)
@@ -37,7 +33,6 @@ module Spectator
           {{block.body}}
         end
       end
-      ::Spectator._spec_add_example({{class_name.id}}.new)
     end
 
     def it_behaves_like
@@ -97,10 +92,5 @@ module Spectator
     def include_examples
       raise NotImplementedError.new("Spectator::DSL#include_examples")
     end
-
-    # :nodoc:
-    protected def _spec_build
-      ExampleGroup.new(@examples)
-    end
   end
 end