Stop using cURL in Pub.

third_party/curl/curl.LICENSE

Index: third_party/curl/curl.LICENSE
diff --git a/third_party/curl/curl.LICENSE b/third_party/curl/curl.LICENSE
deleted file mode 100644
index 18f1684b137b7ae93b1b5e70befe00fe18eb3115..0000000000000000000000000000000000000000
--- a/third_party/curl/curl.LICENSE
+++ /dev/null
@@ -1,21 +0,0 @@
-COPYRIGHT AND PERMISSION NOTICE
-
-Copyright (c) 1996 - 2012, Daniel Stenberg, <daniel@haxx.se>.
-
-All rights reserved.
-
-Permission to use, copy, modify, and distribute this software for any purpose
-with or without fee is hereby granted, provided that the above copyright
-notice and this permission notice appear in all copies.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS. IN
-NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
-DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
-OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE
-OR OTHER DEALINGS IN THE SOFTWARE.
-
-Except as contained in this notice, the name of a copyright holder shall not
-be used in advertising or otherwise to promote the sale, use or other dealings
-in this Software without prior written authorization of the copyright holder.