Revert "feat(uninstall): delete auth credentials on uninstall (CODY-1043

) (#2434)" (#2484)

This reverts commit 65f65c5.

The UninstallListener introduced in this commit seems to run for every
extension uninstall instead of just when the sourcegraph extension is
uninstalled.

## Test plan
This will need to be manually tested.

src/main/kotlin/com/sourcegraph/cody/agent/CodyAgentServer.kt

@@ -171,6 +171,4 @@ interface _LegacyAgentServer {
 
   @JsonRequest("testing/requestErrors")
   fun testingRequestErrors(): CompletableFuture<List<NetworkRequest>>
-
-  @JsonRequest("extension/reset") fun extension_reset(params: Null?): CompletableFuture<Null?>
 }

src/main/kotlin/com/sourcegraph/cody/config/CodyAuthenticationManager.kt

@@ -273,10 +273,6 @@ class CodyAuthenticationManager :
 
   fun showInvalidAccessTokenError() = getIsTokenInvalid().getNow(null) == true
 
-  fun removeAll() {
-    accountManager.accounts.forEach { accountManager.removeAccount(it) }
-  }
-
   override fun dispose() {
     scheduler.shutdown()
   }

src/main/resources/META-INF/plugin.xml

@@ -64,8 +64,6 @@
                            toolWindowId="Cody"/>
         <projectService id="sourcegraph.findService"
                         serviceImplementation="com.sourcegraph.find.FindService"/>
-        <postStartupActivity
-                implementation="com.sourcegraph.cody.initialization.UninstallListener"/>
         <postStartupActivity
                 implementation="com.sourcegraph.cody.initialization.PostStartupActivity"/>