I don't think that removing your t-stat would make that much of a difference given that you are in a warm climate area
Unfortunately, it does. I've driven units with deleted thermostats and the gauges don't even register 1/4. The engines are running cold and would not go from the high idle 'warm up' mode into the regular idle at optimum engine temp. Some engines also do not give max power because the ECU is fooled into thinking that the engine is still too cold.

And the Philippines is only daytime for around 12 hours, there is also the other 12 hours which is [relatively cold] nighttime. Then there's the cold/rainy season [which is about to start]. Plus there are areas of the Philippines cold enough to allow for the use of the cabin heater.