Remove ASM_CUSTOM_RULES capability

This feature is misreported as it is not supported yet.

Author: lloeki

lib/datadog/appsec/remote.rb

@@ -26,7 +26,6 @@ class << self
         ASM_CAPABILITIES = [
           CAP_ASM_IP_BLOCKING,
           CAP_ASM_USER_BLOCKING,
-          CAP_ASM_CUSTOM_RULES,
           CAP_ASM_EXCLUSIONS,
           CAP_ASM_REQUEST_BLOCKING,
           CAP_ASM_RESPONSE_BLOCKING,

spec/datadog/appsec/remote_spec.rb

@@ -20,7 +20,7 @@
       end
 
       it 'returns capabilities' do
-        expect(described_class.capabilities).to eq([4, 128, 256, 16, 32, 64, 8])
+        expect(described_class.capabilities).to eq([4, 128, 16, 32, 64, 8])
       end
     end
   end

spec/datadog/core/remote/client/capabilities_spec.rb

@@ -58,7 +58,7 @@
 
     describe '#base64_capabilities' do
       it 'returns binary capabilities' do
-        expect(capabilities.base64_capabilities).to eq('Afw=')
+        expect(capabilities.base64_capabilities).to eq('/A==')
       end
     end
   end