Updating packaging for soname bump from 2 to 4.

Signed-off-by: Daniel Baumann <daniel@debian.org>

debian/control

@@ -4,7 +4,6 @@ Priority: optional
 Maintainer: Daniel Baumann <daniel@debian.org>
 Build-Depends:
  debhelper-compat (= 13),
- dpkg-dev (>= 1.22.5),
  cmake,
  doxygen <!nodoc>,
  graphviz <!nodoc>,
@@ -32,7 +31,7 @@ Description: library for IETF NETCONF protocol (documentation)
  .
  This package contains the documentation.
 
-Package: libnetconf2-2t64
+Package: libnetconf2-4
 Section: libs
 Architecture: any
 Pre-Depends:
@@ -40,12 +39,6 @@ Pre-Depends:
 Depends:
  ${misc:Depends},
  ${shlibs:Depends},
-Provides:
- ${t64:Provides},
-Replaces:
- libnetconf2-2,
-Breaks:
- libnetconf2-2 (<< ${source:Version}),
 Multi-Arch: same
 Description: library for IETF NETCONF protocol
  NETCONF library in C intended for building NETCONF clients and servers. NETCONF
@@ -71,7 +64,7 @@ Package: libnetconf2-dev
 Section: libdevel
 Architecture: any
 Depends:
- libnetconf2-2t64 (= ${binary:Version}),
+ libnetconf2-4 (= ${binary:Version}),
  libyang2-dev,
  ${misc:Depends},
  ${shlibs:Depends},