Remove dependency on old network version

This allows us to remove the flag. Fixes #160

Author: Kleidukos

HTTP.cabal

@@ -91,10 +91,6 @@ Flag warp-tests
   default:     False
   manual:      True
 
-flag network-uri
-  description: Get Network.URI from the network-uri package
-  default: True
-
 Library
   Exposed-modules:
                  Network.BufferType,
@@ -114,7 +110,7 @@ Library
   Other-modules:
                  Network.HTTP.Base64,
                  Network.HTTP.MD5Aux,
-                 Network.HTTP.Utils
+                 Network.HTTP.Utils,
                  Paths_HTTP
   GHC-options: -fwarn-missing-signatures -Wall
 
@@ -131,16 +127,12 @@ Library
     -- The following dependencies are refined by flags, but they should
     -- still be mentioned here on the top-level.
     , mtl           >= 2.0.0.0   && < 2.4
-    , network       >= 2.4       && < 3.3
+    , network       >= 2.6       && < 3.3
+    , network-uri   >= 2.6       && < 2.7
 
   default-language: Haskell98
   default-extensions: FlexibleInstances
 
-  if flag(network-uri)
-    Build-depends: network-uri == 2.6.*, network >= 2.6
-  else
-    Build-depends: network < 2.6
-
   if flag(warn-as-error)
     ghc-options:      -Werror
 
@@ -167,6 +159,7 @@ Test-Suite test
     , bytestring
     , mtl
     , network
+    , network-uri
     -- extra dependencies
     , deepseq               >= 1.3.0.0  && < 1.6
     , httpd-shed            >= 0.4      && < 0.5
@@ -176,11 +169,6 @@ Test-Suite test
     , test-framework        >= 0.2.0    && < 0.9
     , test-framework-hunit  >= 0.3.0    && < 0.4
 
-  if flag(network-uri)
-    Build-depends: network-uri == 2.6.*, network >= 2.6
-  else
-    Build-depends: network < 2.6
-
   if flag(warp-tests)
     CPP-Options: -DWARP_TESTS
     build-depends: