runtime: fix duplicate "the"s

kicking off contributing again with a classic

Change-Id: Ifb0aed8f1dc854f85751ce0495967a3c4315128d
Reviewed-on: https://go-review.googlesource.com/49016Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>

src/runtime/symtab.go

@@ -382,7 +382,7 @@ type moduledata struct {
 // at link time and a pointer to the runtime abi hash. These are checked in
 // moduledataverify1 below.
 //
-// For each loaded plugin, the the pkghashes slice has a modulehash of the
+// For each loaded plugin, the pkghashes slice has a modulehash of the
 // newly loaded package that can be used to check the plugin's version of
 // a package against any previously loaded version of the package.
 // This is done in plugin.lastmoduleinit.