Remove libgcrypt dependency.

- removes an oversight of explicit runtime dependency
  in cryptsetup-libs

cryptsetup.spec

@@ -22,7 +22,7 @@ Obsoletes: cryptsetup-python3
 Summary: A utility for setting up encrypted disks
 Name: cryptsetup
 Version: 2.0.3
-Release: 5%{?dist}
+Release: 6%{?dist}
 License: GPLv2+ and LGPLv2+
 Group: Applications/System
 URL: https://gitlab.com/cryptsetup/cryptsetup
@@ -64,8 +64,6 @@ Group: System Environment/Libraries
 Summary: Cryptsetup shared library
 Provides: cryptsetup-luks-libs = %{version}-%{release}
 Obsoletes: cryptsetup-luks-libs < 1.4.0
-# Need support for fixed gcrypt PBKDF2 and fixed Whirlpool hash.
-Requires: libgcrypt >= 1.6.1
 
 %description libs
 This package contains the cryptsetup shared library, libcryptsetup.
@@ -227,6 +225,9 @@ popd
 %clean
 
 %changelog
+* Tue Jul 17 2018 Ondrej Kozina <okozina@redhat.com> - 2.0.3-6
+- Remove libgcrypt dependency from cryptsetup-libs package.
+
 * Tue Jul 17 2018 Ondrej Kozina <okozina@redhat.com> - 2.0.3-5
 - Replace sed script with --disable-rpath configure option.
 - Switch cryptsetup to openssl crypto backend.