LibGL: Remove superfluous AK::dbgln alias

Author: https://github.com/gmta
Commit: https://github.com/SerenityOS/serenity/commit/72ec2c21f4
Pull-request: https://github.com/SerenityOS/serenity/pull/12695
Reviewed-by: https://github.com/Quaker762 ✅
Reviewed-by: https://github.com/linusg ✅
Reviewed-by: https://github.com/sunverwerth ✅

Userland/Libraries/LibGL/SoftwareGLContext.cpp

@@ -20,8 +20,6 @@
 #include <LibSoftGPU/Device.h>
 #include <LibSoftGPU/Enums.h>
 
-using AK::dbgln;
-
 namespace GL {
 
 static constexpr size_t MODELVIEW_MATRIX_STACK_LIMIT = 64;