General Cleanup (#600)

* Remove excess prevent_bss_reordering.h

* Cleanup THIS and globalCtx2

* Iceblock relocs

* Format

* PR plus more this

* door spiral

* THIS and globalCtx2 swap, along with sSetupDL in firefly

* Revert ObjMure change

* door_spiral and unused in en_test5

* PR comments

src/boot_O2_g3/boot_main.c

@@ -1,6 +1,5 @@
 #include "prevent_bss_reordering.h"
 #include "global.h"
-#include "prevent_bss_reordering.h"
 
 StackEntry sBootThreadInfo;
 OSThread sIdleThread;

src/boot_O2_g3/idle.c

@@ -1,6 +1,5 @@
 #include "prevent_bss_reordering.h"
 #include "global.h"
-#include "prevent_bss_reordering.h"
 
 u8 D_80096B20 = 1;
 vu8 gViConfigUseDefault = 1;