Silence E3 DIP build warning (#17492)

buildroot/share/PlatformIO/scripts/STM32F103RE_SKR_E3_DIP.py

 import os
 Import("env")
 
+for define in env['CPPDEFINES']:
+    if define[0] == "VECT_TAB_ADDR":
+        env['CPPDEFINES'].remove(define)
+
 # Relocate firmware from 0x08000000 to 0x08007000
 env['CPPDEFINES'].append(("VECT_TAB_ADDR", "0x08007000"))