de-insulate grpc client context

Author: lia-viam

src/viam/sdk/common/client_helper.hpp

@@ -9,8 +9,6 @@ namespace grpc {
 
 class Status;
 
-class ClientContext;
-
 template <typename T>
 class ClientReaderInterface;
 

src/viam/sdk/common/utils.hpp

@@ -3,6 +3,7 @@
 #include <memory>
 
 #include <boost/optional/optional.hpp>
+#include <grpcpp/client_context.h>
 
 #include <viam/sdk/common/proto_value.hpp>
 #include <viam/sdk/components/component.hpp>
@@ -17,12 +18,6 @@ class Timestamp;
 }  // namespace protobuf
 }  // namespace google
 
-namespace grpc {
-
-class ClientContext;
-
-}
-
 namespace viam {
 namespace common {
 namespace v1 {