Remove copy of version/properties in src/main/resources

This is no longer needed.

Bug: 300224510
Test: ./gradlew
Change-Id: I91c71a26ad375f5f3a2313aaa3debfb7227da549
diff --git a/src/main/resources/version.properties b/src/main/resources/version.properties
deleted file mode 100644
index 5d54c5b..0000000
--- a/src/main/resources/version.properties
+++ /dev/null
@@ -1,5 +0,0 @@
-# suppress inspection "UnusedProperty" for whole file
-# Version definition
-# This file is read by gradle build scripts, but also packaged with metalava
-# as a resource for the Version classes to read.
-metalavaVersion=1.0.0-alpha09