sim: testsuite: delete unused arm remote host logic

There's no need to sync testutils.inc with remote hosts.  The one
we have in the source tree is all we need and only thing we test.
Delete it to simplify.

sim/testsuite/arm/allinsn.exp

diff --git a/sim/testsuite/arm/allinsn.exp b/sim/testsuite/arm/allinsn.exp
index c4d1cce..4f4f438 100644
--- a/sim/testsuite/arm/allinsn.exp
+++ b/sim/testsuite/arm/allinsn.exp
@@ -4,10 +4,6 @@
     # all machines
     set all_machs "xscale"
 
-    if [is_remote host] {
-      remote_download host $srcdir/$subdir/testutils.inc
-    }
-
     # The .cgs suffix is for "cgen .s".
     foreach src [lsort [glob -nocomplain $srcdir/$subdir/*.cgs]] {
 	# If we're only testing specific files and this isn't one of them,
@@ -18,8 +14,4 @@
 
 	run_sim_test $src $all_machs
     }
-
-    if [is_remote host] {
-      remote_file host delete testutils.inc
-    }
 }

sim/testsuite/arm/iwmmxt/iwmmxt.exp

diff --git a/sim/testsuite/arm/iwmmxt/iwmmxt.exp b/sim/testsuite/arm/iwmmxt/iwmmxt.exp
index 4aff9c7..058e9e6 100644
--- a/sim/testsuite/arm/iwmmxt/iwmmxt.exp
+++ b/sim/testsuite/arm/iwmmxt/iwmmxt.exp
@@ -4,10 +4,6 @@
     # all machines
     set all_machs "xscale"
 
-    if [is_remote host] {
-      remote_download host $srcdir/$subdir/testutils.inc
-    }
-
     # The .cgs suffix is for "cgen .s".
     foreach src [lsort [glob -nocomplain $srcdir/$subdir/*.cgs]] {
 	# If we're only testing specific files and this isn't one of them,
@@ -18,8 +14,4 @@
 
 	run_sim_test $src $all_machs
     }
-
-    if [is_remote host] {
-      remote_file host delete testutils.inc
-    }
 }

sim/testsuite/arm/xscale/xscale.exp

diff --git a/sim/testsuite/arm/xscale/xscale.exp b/sim/testsuite/arm/xscale/xscale.exp
index e65a952..394e351 100644
--- a/sim/testsuite/arm/xscale/xscale.exp
+++ b/sim/testsuite/arm/xscale/xscale.exp
@@ -4,10 +4,6 @@
     # all machines
     set all_machs "xscale"
 
-    if [is_remote host] {
-      remote_download host $srcdir/$subdir/testutils.inc
-    }
-
     # The .cgs suffix is for "cgen .s".
     foreach src [lsort [glob -nocomplain $srcdir/$subdir/*.cgs]] {
 	# If we're only testing specific files and this isn't one of them,
@@ -18,8 +14,4 @@
 
 	run_sim_test $src $all_machs
     }
-
-    if [is_remote host] {
-      remote_file host delete testutils.inc
-    }
 }