Remove build flag leading to wdt reset on some boards

.vscode/extensions.json

@@ -3,5 +3,8 @@
     // for the documentation about the extensions.json format
     "recommendations": [
         "platformio.platformio-ide"
+    ],
+    "unwantedRecommendations": [
+        "ms-vscode.cpptools-extension-pack"
     ]
 }

platformio.ini

@@ -104,7 +104,6 @@ build_flags =
   -DBEARSSL_SSL_BASIC
   -D CORE_DEBUG_LEVEL=0
   -D NDEBUG
-	-Dregister=
   #build_flags for the IRremoteESP8266 library (enabled decoders have to appear here)
   -D _IR_ENABLE_DEFAULT_=false
   -D DECODE_HASH=true
@@ -183,7 +182,7 @@ build_flags =
   -DESP8266
   -DFP_IN_IROM
   ;-Wno-deprecated-declarations
-  ;-Wno-register
+  -Wno-register
 	-Wno-misleading-indentation
 ; NONOSDK22x_190703 = 2.2.2-dev(38a443e)
   -DPIO_FRAMEWORK_ARDUINO_ESPRESSIF_SDK22x_190703