[source] config: enable shadow passwords unconditionally

[LEDE Commits]

neoraider pushed a commit to source.git, branch master:
https://git.lede-project.org/77f54eae453db4220547c4c17d29ff91351b06e0

commit 77f54eae453db4220547c4c17d29ff91351b06e0
Author: Matthias Schiffer <mschiffer at universe-factory.net>
AuthorDate: Mon Sep 26 15:25:37 2016 +0200

    config: enable shadow passwords unconditionally
    
    Configurations without shadow passwords have been broken since the removal
    of telnet: as the default entry in /etc/passwd is not empty (but rather
    unset), there will be no way to log onto such a system by default. As
    disabling shadow passwords is not useful anyways, remove this configuration
    option.
    
    The config symbol is kept (for a while), as packages from feeds depend on
    it.
    
    Signed-off-by: Matthias Schiffer <mschiffer at universe-factory.net>
---
 config/Config-build.in                     | 3 ---
 package/network/services/dropbear/Makefile | 1 -
 toolchain/uClibc/common.mk                 | 1 -
 3 files changed, 5 deletions(-)

diff --git a/config/Config-build.in b/config/Config-build.in
index 6d81bef6..7c82e8b 100644
--- a/config/Config-build.in
+++ b/config/Config-build.in
@@ -47,10 +47,7 @@ menu "Global build settings"
 
 	config SHADOW_PASSWORDS
 		bool
-		prompt "Enable shadow password support"
 		default y
-		help
-		  Enable shadow password support.
 
 	config CLEAN_IPKG
 		bool
diff --git a/package/network/services/dropbear/Makefile b/package/network/services/dropbear/Makefile
index b80f4d5..41c66dd 100644
--- a/package/network/services/dropbear/Makefile
+++ b/package/network/services/dropbear/Makefile
@@ -66,7 +66,6 @@ CONFIGURE_ARGS += \
 	--disable-pam \
 	--enable-openpty \
 	--enable-syslog \
-	$(if $(CONFIG_SHADOW_PASSWORDS),,--disable-shadow) \
 	--disable-lastlog \
 	--disable-utmpx \
 	$(if $(CONFIG_DROPBEAR_UTMP),,--disable-utmp) \
diff --git a/toolchain/uClibc/common.mk b/toolchain/uClibc/common.mk
index 878bd76..952f67d 100644
--- a/toolchain/uClibc/common.mk
+++ b/toolchain/uClibc/common.mk
@@ -77,7 +77,6 @@ define Host/Configure
 	$(SED) 's,^KERNEL_HEADERS=.*,KERNEL_HEADERS=\"$(BUILD_DIR_TOOLCHAIN)/linux-dev/include\",g' \
 		-e 's,^.*UCLIBC_HAS_FPU.*,UCLIBC_HAS_FPU=$(if $(CONFIG_SOFT_FLOAT),n,y),g' \
 		-e 's,^.*UCLIBC_HAS_SOFT_FLOAT.*,UCLIBC_HAS_SOFT_FLOAT=$(if $(CONFIG_SOFT_FLOAT),y,n),g' \
-		-e 's,^.*UCLIBC_HAS_SHADOW.*,UCLIBC_HAS_SHADOW=$(if $(CONFIG_SHADOW_PASSWORDS),y,n),g' \
 		-e 's,^.*UCLIBC_HAS_LOCALE.*,UCLIBC_HAS_LOCALE=$(if $(CONFIG_BUILD_NLS),y,n),g' \
 		-e 's,^.*UCLIBC_BUILD_ALL_LOCALE.*,UCLIBC_BUILD_ALL_LOCALE=$(if $(CONFIG_BUILD_NLS),y,n),g' \
 		-e 's,^.*UCLIBC_HAS_SSP[^_].*,UCLIBC_HAS_SSP=$(if $(or $(CONFIG_PKG_CC_STACKPROTECTOR_REGULAR),$(CONFIG_PKG_CC_STACKPROTECTOR_STRONG)),y,n),g' \