Use Guava built from source for AndroidX prebuilts.

Bug: 244341573
Bug: 258221936
Test: presubmit
Change-Id: I74cf3e73d8bd383a8748ef5db1d4bb5fb2587880
Test: None
diff --git a/update_prebuilts/update_prebuilts.py b/update_prebuilts/update_prebuilts.py
index 46d8e44..6a95dcc 100755
--- a/update_prebuilts/update_prebuilts.py
+++ b/update_prebuilts/update_prebuilts.py
@@ -260,7 +260,7 @@
     'androidx.room:room-compiler': {
         'host': True,
         'extra-static-libs': {
-            'guava-21.0'
+            'guava'
         }
     },
     'androidx.room:room-migration': {