Remove old failing tests that are no longer relevant

spec/lib/configuration_spec.rb

@@ -81,18 +81,6 @@ class ConfigurationExample2
     expect(SubConfigurationExample.username).to eq("john")
   end
 
-  it "should escape the username" do
-    Flexirest::Base.username = "bill@example.com"
-    expect(Flexirest::Base.username).to eq("bill%40example.com")
-    Flexirest::Base.username = nil
-  end
-
-  it "should not doubly escape the username" do
-    Flexirest::Base.username = "bill%40example.com"
-    expect(Flexirest::Base.username).to_not eq("bill%2540example.com")
-    Flexirest::Base.username = nil
-  end
-
   it "should remember the set password" do
     expect(ConfigurationExample.password).to eq("smith")
   end
@@ -107,18 +95,6 @@ class ConfigurationExample2
     expect(SubConfigurationExample.password).to eq("smith")
   end
 
-  it "should escape the password" do
-    Flexirest::Base.password = "something@else"
-    expect(Flexirest::Base.password).to eq("something%40else")
-    Flexirest::Base.password = nil
-  end
-
-  it "should not doubly escape the password" do
-    Flexirest::Base.password = "something%40else"
-    expect(Flexirest::Base.password).to_not eq("something%2540else")
-    Flexirest::Base.password = nil
-  end
-
   it "should default to a form_encoded request_body_type" do
     expect(Flexirest::Base.request_body_type).to eq(:form_encoded)
   end