[common] remove nvidia driver hack using environment variables (#2575)

Ugly hack that helped boost FPS on OpenGL backend... or does it? https://download.nvidia.com/XFree86/Linux-x86_64/435.17/README/openglenvvariables.html
This shouldn't work on Windows properly, as it is meant to be a Linux only thing anyways... so?

Signed-off-by: lizzie <lizzie@eden-emu.dev>

Reviewed-on: https://git.eden-emu.dev/eden-emu/eden/pulls/2575
Reviewed-by: MaranBr <maranbr@eden-emu.dev>
Reviewed-by: Shinmegumi <shinmegumi@eden-emu.dev>
Reviewed-by: crueter <crueter@eden-emu.dev>
Co-authored-by: lizzie <lizzie@eden-emu.dev>
Co-committed-by: lizzie <lizzie@eden-emu.dev>

src/yuzu/main.cpp

@@ -35,7 +35,6 @@
 #include "applets/qt_profile_select.h"
 #include "applets/qt_software_keyboard.h"
 #include "applets/qt_web_browser.h"
-#include "common/nvidia_flags.h"
 #include "common/settings_enums.h"
 #include "configuration/configure_input.h"
 #include "configuration/configure_per_game.h"
@@ -4917,7 +4916,6 @@ int main(int argc, char* argv[]) {
 #endif
 
     Common::DetachedTasks detached_tasks;
-    Common::ConfigureNvidiaEnvironmentFlags();
 
     // Init settings params
     QCoreApplication::setOrganizationName(QStringLiteral("eden"));