Fastest method to remove all whitespace from Strings in .NET

I've learned (self-taught) computer programming at 11 years-old on a MSX computer (a Hot-Bit from Sharp) and have since made a profession out of my love for coding software. I've been very fortunate to work on projects spawning almost the entire field of computer programming, from low-level embedded systems, serial communication protocols, socket-based communication and PLC (Programmable Logic Controller) programming to high-level ASP.NET/MVC, WinForms, WPF, JavaScript frameworks, Microsoft Azure and many other technologies. I've got lots of experience developing in C#, Pascal/Delphi, C/C++, JavaScript, VB/VB.NET and Lua but have programmed in almost all languages known to man

Currently I'm the CTO and principal software architect/developer of CODAX Sistemas, a Brazilian startup company offering the first and best fully cloud-based Time and Attendance and Access Control system in Brazil.

I'm also a Judo black belt under the world-renowned sensei George K. Mehdi and a Brazilian Jiu-jitsu brown belt under master Alvaro Mansor of the Soul Fighters BJJ academy.