Remove HOMEPAGE_URL from cmake project.

The HOMEPAGE_URL is a CMake 3.12ism, and seems to cause some issues on
3.10

Change-Id: I567bd86bb86db7d383efcde8526e57ce8714844f
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/30641
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Commit-Queue: dan sinclair <dsinclair@chromium.org>
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 2766db7..6dc7e32 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -18,12 +18,12 @@
 # becomes available.
 # When upgrading to CMake 3.12 we should add CONFIGURE_DEPENDS to DawnGenerator to rerun CMake in
 # case any of the generator files changes. We should also remove the CACHE "" FORCE stuff to
-# override options in third_party dependencies.
+# override options in third_party dependencies. We can also add the HOMEPAGE_URL
+# entry to the project `HOMEPAGE_URL "https://dawn.googlesource.com/dawn"`
 
 project(
     Dawn
     DESCRIPTION "Dawn, a WebGPU implementation"
-    HOMEPAGE_URL "https://dawn.googlesource.com/dawn"
     LANGUAGES C CXX
 )