Fluid: Revert changes from T82488

Scaling of forces needs more work. Before making changes to them it would be nice to have a setup, that works physically correct across multiple modifiers (cloth, rigid bodies, fluid).

This will be a to do for 2.92.

source/blender/blenkernel/intern/fluid.c

@@ -3196,6 +3196,8 @@ static void update_effectors_task_cb(void *__restrict userdata,
       mul_v3_fl(retvel, mag);
 
       /* Copy computed force to fluid solver forces. */
+      mul_v3_fl(retvel, 0.2f);     /* Factor from 0e6820cc5d62. */
+      CLAMP3(retvel, -1.0f, 1.0f); /* Restrict forces to +-1 interval. */
       data->force_x[index] = retvel[0];
       data->force_y[index] = retvel[1];
       data->force_z[index] = retvel[2];