Fix Struct::Tms deprecation warnings (#2413)

Author: alextwoods

CHANGELOG.md

@@ -1,6 +1,8 @@
 Unreleased Changes
 ------------------
 
+* Issue - Fix Struct::Tms deprecation warnings
+
 2.11.595 (2020-09-28)
 ------------------
 

aws-sdk-core/lib/aws-sdk-core/eager_loader.rb

@@ -16,6 +16,7 @@ def initialize
     def load(klass_or_module)
       @loaded << klass_or_module
       klass_or_module.constants.each do |const_name|
+        next if const_name == :Tms
         path = klass_or_module.autoload?(const_name)
         begin
           require(path) if path