aconfig: remove support for --format=verbose

This CL is part of a larger effort to simplify maintenance by removing
format aliases: with the new --format option, clients of `aconfig dump`
can specify the format they need themselves.

Bug: 317044914
Test: m
Change-Id: I4db31eb3fe03c34118d61a0a1911e12f5049b77d
diff --git a/tools/aconfig/src/dump.rs b/tools/aconfig/src/dump.rs
index 858d14a..e242db2 100644
--- a/tools/aconfig/src/dump.rs
+++ b/tools/aconfig/src/dump.rs
@@ -41,10 +41,6 @@
             "text" => Ok(Self::Custom(
                 "{fully_qualified_name} [{container}]: {permission} + {state}".to_owned(),
             )),
-            "verbose" => Ok(Self::Custom(
-                "{fully_qualified_name} [{container}]: {permission} + {state} ({trace:paths})"
-                    .to_owned(),
-            )),
 
             // custom format
             _ => Ok(Self::Custom(value.to_owned())),
@@ -275,10 +271,6 @@
             "text",
             "com.android.aconfig.test.enabled_ro [system]: READ_ONLY + ENABLED"
         );
-        assert_dump_parsed_flags_custom_format_contains!(
-            "verbose",
-            "com.android.aconfig.test.enabled_ro [system]: READ_ONLY + ENABLED (tests/test.aconfig, tests/first.values, tests/second.values)"
-        );
     }
 
     #[test]