chore: remove unused var

Author: diegomarquezp

google/cloud/bigtable/internal/data_connection_impl_test.cc

@@ -228,7 +228,6 @@ void MakeResponse(google::bigtable::v2::PartialResultSet& response,
   for (auto const& v : values) {
     google::bigtable::v2::Value value;
     value.set_string_value(v);
-    google::bigtable::v2::Type type;
     *(*value.mutable_type()).mutable_string_type() =
         std::move(google::bigtable::v2::Type_String{});
     *proto_rows.add_values() = value;

google/cloud/bigtable/internal/partial_result_set_resume_test.cc

@@ -81,7 +81,6 @@ void MakeResponse(google::bigtable::v2::PartialResultSet& response,
   for (auto const& v : values) {
     google::bigtable::v2::Value value;
     value.set_string_value(v);
-    google::bigtable::v2::Type type;
     *(*value.mutable_type()).mutable_string_type() =
         std::move(google::bigtable::v2::Type_String{});
     *proto_rows.add_values() = value;