Can't do SCU build on Windows

[KoBeWi]

Tested versions

Regression from a5cf926

System information

Windows 10.0.19045 - Vulkan (Forward+) - dedicated NVIDIA GeForce GTX 1060 (NVIDIA; 31.0.15.4633) - Intel(R) Core(TM) i7-7700HQ CPU @ 2.80GHz (8 Threads)

Issue description

Compiling SCU build results in

LINK : fatal error LNK1181: cannot open input file „modules\module_gdscript.windows.editor.dev.x86_64.lib”

CC @Riteo

Steps to reproduce

scons dev_build=yes scu_build=yes

Minimal reproduction project (MRP)

N/A

EDIT:
Seems like reverting scu_builders.py changes is enough to fix this.

[KoBeWi]

Fixed by #90450