Inherit settings from region-free INIs to region-specific INIs

Having settings for each game in more than one file is redundant.
Now, region-free INIs are now only for settings, and region-specific
INIs are only for AR codes and patches. Exceptions are made for
titles that share the first three characters of their IDs with
unrelated titles (mostly unlicensed titles and Triforce titles).

Data/Sys/GameSettings/SMNE01.ini

@@ -1,13 +1,5 @@
 # SMNE01 - New SUPER MARIO BROS. Wii
 
-[Core]
-# Values set here will override the main Dolphin settings.
-
-[EmuState]
-# The Emulation State. 1 is worst, 5 is best, 0 is not set.
-EmulationIssues = Enable EFB to RAM for the coins to spin (it will cause a big slowdown).
-EmulationStateId = 4
-
 [OnLoad]
 # Add memory patches to be loaded once on boot here.
 
@@ -40,17 +32,3 @@ $Infinite Mini Mushrooms
 $Infinite Stars
 00C7FE6F 00000063
 015DBB8F 00000063
-
-[Video]
-ProjectionHack = 0
-PH_SZNear = 0
-PH_SZFar = 0
-PH_ExtraParam = 0
-PH_ZNear =
-PH_ZFar =
-
-[Video_Settings]
-SafeTextureCacheColorSamples = 512
-
-[Video_Hacks]
-