[wpilibc] Remove C++ compiler version static asserts (#3386)

frc/Base.h isn't the first header included basically anywhere, so the
compiler will fail on C++17 things before the asserts in this header are
processed.

wpilibc/src/main/native/include/frc/Base.h

@@ -4,16 +4,6 @@
 
 #pragma once
 
-#if !defined(__clang__) && defined(__GNUC__) && __GNUC__ < 5
-static_assert(0,
-              "GCC must be 5 or greater. If building for the roboRIO, please "
-              "update to the 2018 toolchains.");
-#endif
-
-#if defined(_MSC_VER) && _MSC_VER < 1900
-static_assert(0, "Visual Studio 2015 or greater required.");
-#endif
-
 /** WPILib FRC namespace */
 namespace frc {