[fusl] Remove code for unsupported architectures

fusl/arch/mips/bits/reg.h

Index: fusl/arch/mips/bits/reg.h
diff --git a/fusl/arch/mips/bits/reg.h b/fusl/arch/mips/bits/reg.h
deleted file mode 100644
index 0c370987731bcbd9b20b917e7a30d4873ec47b07..0000000000000000000000000000000000000000
--- a/fusl/arch/mips/bits/reg.h
+++ /dev/null
@@ -1,47 +0,0 @@
-#undef __WORDSIZE
-#define __WORDSIZE 32
-
-#define EF_R0 6
-#define EF_R1 7
-#define EF_R2 8
-#define EF_R3 9
-#define EF_R4 10
-#define EF_R5 11
-#define EF_R6 12
-#define EF_R7 13
-#define EF_R8 14
-#define EF_R9 15
-#define EF_R10 16
-#define EF_R11 17
-#define EF_R12 18
-#define EF_R13 19
-#define EF_R14 20
-#define EF_R15 21
-#define EF_R16 22
-#define EF_R17 23
-#define EF_R18 24
-#define EF_R19 25
-#define EF_R20 26
-#define EF_R21 27
-#define EF_R22 28
-#define EF_R23 29
-#define EF_R24 30
-#define EF_R25 31
-
-#define EF_R26 32
-#define EF_R27 33
-#define EF_R28 34
-#define EF_R29 35
-#define EF_R30 36
-#define EF_R31 37
-
-#define EF_LO 38
-#define EF_HI 39
-
-#define EF_CP0_EPC 40
-#define EF_CP0_BADVADDR 41
-#define EF_CP0_STATUS 42
-#define EF_CP0_CAUSE 43
-#define EF_UNUSED0 44
-
-#define EF_SIZE 180