In PowerPC libem, remove tge.s and powerpc.h

Nothing uses the tables in tge.s, after I changed the ncg table.
There are no *.e files in libem, so don't try to build them.

mach/powerpc/libem/build.lua

@@ -1,14 +1,12 @@
 for _, plat in ipairs(vars.plats) do
 	acklibrary {
 		name = "headers_"..plat,
-		hdrs = { "./*.h" }
 	}
 
 	acklibrary {
 		name = "lib_"..plat,
 		srcs = {
-			"./*.s", -- zer.s
-			"./*.e",
+			"./*.s",
 		},
 		vars = { plat = plat },
 		deps = {

mach/powerpc/libem/powerpc.h

@@ -1,22 +0,0 @@
-#
-! $Source$
-! $State$
-! $Revision$
-
-! Declare segments (the order is important).
-
-.sect .text
-.sect .rom
-.sect .data
-.sect .bss
-
-#define IFFALSE 4
-#define IFTRUE 12
-#define ALWAYS 20
-#define DNZ 16
-
-#define LT 0
-#define GT 1
-#define EQ 2
-#define OV 3
-	

mach/powerpc/libem/tge.s

@@ -1,46 +0,0 @@
-#
-! $Source$
-! $State$
-! $Revision$
-
-#include "powerpc.h"
-
-.sect .rom
-
-! Lookup table for tge.
-
-.define .teq_table
-.teq_table:
-	.data4 1       ! . .
-	.data4 0       ! . G
-	.data4 0       ! L .
-
-.define .tne_table
-.tne_table:
-	.data4 0       ! . .
-	.data4 1       ! . G
-	.data4 1       ! L .
-
-.define .tgt_table
-.tgt_table:
-	.data4 0       ! . .
-	.data4 1       ! . G
-	.data4 0       ! L .
-
-.define .tge_table
-.tge_table:
-	.data4 1       ! . .
-	.data4 1       ! . G
-	.data4 0       ! L .
-
-.define .tlt_table
-.tlt_table:
-	.data4 0       ! . .
-	.data4 0       ! . G
-	.data4 1       ! L .
-
-.define .tle_table
-.tle_table:
-	.data4 1       ! . .
-	.data4 0       ! . G
-	.data4 1       ! L .