Remove confusing alias / config_setting documentation.

Fixes #6449

Closes #6620.

PiperOrigin-RevId: 274156200
diff --git a/src/main/java/com/google/devtools/build/lib/rules/Alias.java b/src/main/java/com/google/devtools/build/lib/rules/Alias.java
index 8570039..a038057 100644
--- a/src/main/java/com/google/devtools/build/lib/rules/Alias.java
+++ b/src/main/java/com/google/devtools/build/lib/rules/Alias.java
@@ -116,7 +116,7 @@
 
 <p>
   Aliasing only works for "regular" targets. In particular, <code>package_group</code>
-    and <code>test_suite</code> rules cannot be aliased.
+  and <code>test_suite</code> cannot be aliased.
 </p>
 
 <p>