simplify matcher/readmer.md

Author: skatkov

features/matchers/README.md

@@ -28,18 +28,6 @@ expect(assigns(:widget)).to be_a_new(Widget)
 ### error reporting
 
 ```ruby
-# passes if Rails.error.report was called with any error
-expect { Rails.error.report(StandardError.new) }.to have_reported_error
-
-# passes if Rails.error.report was called with a specific error class
-expect { Rails.error.report(MyError.new) }.to have_reported_error(MyError)
-
 # passes if Rails.error.report was called with specific error instance and message
 expect { Rails.error.report(MyError.new("message")) }.to have_reported_error(MyError.new("message"))
-
-# passes if Rails.error.report was called with error matching regex pattern
-expect { Rails.error.report(StandardError.new("test message")) }.to have_reported_error(/test/)
-
-# passes if Rails.error.report was called with specific attributes
-expect { Rails.error.report(StandardError.new, context: "test") }.to have_reported_error.with(context: "test")
 ```