Remove complex import order

Google's style guide changed its complex rules to be much simpler: all
static imports, then all non-static imports:

https://google.github.io/styleguide/javaguide.html#s3.3.3-import-ordering-and-spacing

google-java-format will also understand this order.

Change the Eclipse project settings and .importorder file, and reorder
everything.

Change-Id: I0bd3a085ef00ceee88d06e2c4b4711f1f696e4ae

.settings/org.eclipse.jdt.ui.prefs

diff --git a/.settings/org.eclipse.jdt.ui.prefs b/.settings/org.eclipse.jdt.ui.prefs
index d4218a5..2176a47 100644
--- a/.settings/org.eclipse.jdt.ui.prefs
+++ b/.settings/org.eclipse.jdt.ui.prefs
@@ -1,10 +1,9 @@
-#Wed Jul 29 11:31:38 PDT 2009
 eclipse.preferences.version=1
 editor_save_participant_org.eclipse.jdt.ui.postsavelistener.cleanup=true
 formatter_profile=_Google Format
 formatter_settings_version=11
 org.eclipse.jdt.ui.ignorelowercasenames=true
-org.eclipse.jdt.ui.importorder=com.google;com;junit;net;org;java;javax;
+org.eclipse.jdt.ui.importorder=;
 org.eclipse.jdt.ui.ondemandthreshold=99
 org.eclipse.jdt.ui.staticondemandthreshold=99
 org.eclipse.jdt.ui.text.custom_code_templates=<?xml version\="1.0" encoding\="UTF-8" standalone\="no"?><templates/>