package/openfpgaloader: C++ dependency is not inherited

openfpgaloader is written in C++, so the dependency on C++ is not
inherited from libftdipp1.

Drop the confusing comment.

Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>

package/openfpgaloader/Config.in

@@ -2,7 +2,7 @@ config BR2_PACKAGE_OPENFPGALOADER
 	bool "openfpgaloader"
 	depends on BR2_TOOLCHAIN_HAS_THREADS # libftdi1
 	depends on BR2_PACKAGE_HAS_UDEV
-	depends on BR2_INSTALL_LIBSTDCPP # libftdipp1
+	depends on BR2_INSTALL_LIBSTDCPP
 	depends on BR2_USE_WCHAR # libftdipp1
 	select BR2_PACKAGE_ARGP_STANDALONE \
 	       if BR2_TOOLCHAIN_USES_UCLIBC || BR2_TOOLCHAIN_USES_MUSL # argp