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/cc/ndk_prebuilt.go b/cc/ndk_prebuilt.go
index b91c737..51ec6b8 100644
--- a/cc/ndk_prebuilt.go
+++ b/cc/ndk_prebuilt.go
@@ -186,9 +186,8 @@
 		})
 	} else {
 		ctx.SetProvider(SharedLibraryInfoProvider, SharedLibraryInfo{
-			SharedLibrary:           lib,
-			UnstrippedSharedLibrary: lib,
-			Target:                  ctx.Target(),
+			SharedLibrary: lib,
+			Target:        ctx.Target(),
 		})
 	}