diff --git a/doc/openocd.texi b/doc/openocd.texi
index c39e7c168..d71731138 100644
--- a/doc/openocd.texi
+++ b/doc/openocd.texi
@@ -11087,34 +11087,6 @@ OpenOCD commands can consist of two words, e.g. "flash banks". The
 @file{startup.tcl} "unknown" proc will translate this into a Tcl proc
 called "flash_banks".
 
-@section OpenOCD specific Global Variables
-
-Real Tcl has ::tcl_platform(), and platform::identify, and many other
-variables. JimTCL, as implemented in OpenOCD creates $ocd_HOSTOS which
-holds one of the following values:
-
-@itemize @bullet
-@item @b{cygwin}   Running under Cygwin
-@item @b{darwin}   Darwin (Mac-OS) is the underlying operating system.
-@item @b{freebsd}  Running under FreeBSD
-@item @b{openbsd}  Running under OpenBSD
-@item @b{netbsd}   Running under NetBSD
-@item @b{linux}    Linux is the underlying operating system
-@item @b{mingw32}  Running under MingW32
-@item @b{winxx}    Built using Microsoft Visual Studio
-@item @b{ecos}     Running under eCos
-@item @b{other}    Unknown, none of the above.
-@end itemize
-
-Note: 'winxx' was chosen because today (March-2009) no distinction is made between Win32 and Win64.
-
-@quotation Note
-We should add support for a variable like Tcl variable
-@code{tcl_platform(platform)}, it should be called
-@code{jim_platform} (because it
-is jim, not real tcl).
-@end quotation
-
 @section Tcl RPC server
 @cindex RPC
 
diff --git a/src/helper/command.c b/src/helper/command.c
index 08d14b47f..0c6e785f2 100644
--- a/src/helper/command.c
+++ b/src/helper/command.c
@@ -1277,7 +1277,6 @@ static const struct command_registration command_builtin_handlers[] = {
 struct command_context *command_init(const char *startup_tcl, Jim_Interp *interp)
 {
 	struct command_context *context = calloc(1, sizeof(struct command_context));
-	const char *HostOs;
 
 	context->mode = COMMAND_EXEC;
 
@@ -1296,39 +1295,6 @@ struct command_context *command_init(const char *startup_tcl, Jim_Interp *interp
 
 	context->interp = interp;
 
-	/* Stick to lowercase for HostOS strings. */
-#if defined(_MSC_VER)
-	/* WinXX - is generic, the forward
-	 * looking problem is this:
-	 *
-	 *   "win32" or "win64"
-	 *
-	 * "winxx" is generic.
-	 */
-	HostOs = "winxx";
-#elif defined(__linux__)
-	HostOs = "linux";
-#elif defined(__APPLE__) || defined(__DARWIN__)
-	HostOs = "darwin";
-#elif defined(__CYGWIN__)
-	HostOs = "cygwin";
-#elif defined(__MINGW32__)
-	HostOs = "mingw32";
-#elif defined(__ECOS)
-	HostOs = "ecos";
-#elif defined(__FreeBSD__)
-	HostOs = "freebsd";
-#elif defined(__NetBSD__)
-	HostOs = "netbsd";
-#elif defined(__OpenBSD__)
-	HostOs = "openbsd";
-#else
-#warning "Unrecognized host OS..."
-	HostOs = "other";
-#endif
-	Jim_SetGlobalVariableStr(interp, "ocd_HOSTOS",
-		Jim_NewStringObj(interp, HostOs, strlen(HostOs)));
-
 	register_commands(context, NULL, command_builtin_handlers);
 
 	Jim_SetAssocData(interp, "context", NULL, context);