Only store what's used in SharedLibraryInfo

There was a reference to the static library provider, but only the
transitive static deps were used, so only store that part. Other members
were stored but unused anywhere.

Test: go test soong tests
Test: m nothing
Change-Id: I12a6b94806c052c3f0df3cab0a10f17042af1c38
diff --git a/rust/library.go b/rust/library.go
index 1a56ef6..747a29d 100644
--- a/rust/library.go
+++ b/rust/library.go
@@ -503,9 +503,8 @@
 
 	if library.shared() {
 		ctx.SetProvider(cc.SharedLibraryInfoProvider, cc.SharedLibraryInfo{
-			SharedLibrary:           outputFile,
-			UnstrippedSharedLibrary: outputFile,
-			Target:                  ctx.Target(),
+			SharedLibrary: outputFile,
+			Target:        ctx.Target(),
 		})
 	}