Remove handles_missing_pvs assignment after call to create_toolcontext().

This variable is set at the top of create_toolcontext() to 0.
Nothing later in create_toolcontext() changes the value.
In init_lvm(), nothing between create_toolcontext() call and this assignment
changes the value.  Thus, the assignment is redundant.

tools/lvmcmdline.c

@@ -1105,7 +1105,6 @@ struct cmd_context *init_lvm(unsigned is_static)
 
 	cmd->fmt = arg_ptr_value(cmd, metadatatype_ARG,
 				 cmd->current_settings.fmt);
-	cmd->handles_missing_pvs = 0;
 
 	return cmd;
 }