vsh: Drop fwd declaration of a nonexistent function

The vshFindTypedParamByName() function no longer exists (as of
v1.0.2-rc1~82), but its header file declaration was still kept
around. Drop it.

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>

tools/vsh.h

@@ -314,9 +314,6 @@ void vshDebug(vshControl *ctl, int level, const char *format, ...)
 #define vshStrcasecmp(S1, S2) strcasecmp(S1, S2)
 int vshNameSorter(const void *a, const void *b);
 
-virTypedParameterPtr vshFindTypedParamByName(const char *name,
-                                             virTypedParameterPtr list,
-                                             int count);
 char *vshGetTypedParamValue(vshControl *ctl, virTypedParameterPtr item)
     ATTRIBUTE_NONNULL(1) ATTRIBUTE_NONNULL(2);