We're still using the is.mst with the JDK, which applies a transform that gets's rid of the "Installshield" branding. Even if you remove the branding Branding1/Branding2 controls from the Control table, Installshield will put them back in. The fix is to just remove the text associated with it:

------- Control.idt -------
11,12c11,12
< CustomSetup Branding1 Text 4 229 50 13 3
        ##IDS__IsCustomSelectionDlg_2## 0
< CustomSetup Branding2 Text 3 228 50 13 65537
        ##IDS__IsCustomSelectionDlg_3## 0
---
> CustomSetup Branding1 Text 4 229 50 13 3
                                0
> CustomSetup Branding2 Text 3 228 50 13 65537
                                0

for every sdk dialog. And stop the Makefile from applying the is.mst transform.