Updated git submodules

Project: aai/esr-server master 602b54865f4f47b491848b83417c5c0d05bfebe7

Merge "Remove this unused import java.util.ArrayList"

Remove this unused import java.util.ArrayList

Remove this unused import java.util.ArrayList
VimRegisterInfo.java:L18

Sonar Link:
https://sonar.onap.org/component_issues/index?id=org.onap.aai.esr-server%3Aaai-esr-server#assigned=false|resolved=false|severities=MINOR

Location:
src\main\java\org\onap\aai\esr\entity\rest\VimRegisterInfo.java

Change-Id: I55354dfaad886dade9310776a5fa1af798ac33df
Issue-ID: AAI-688
Signed-off-by: Swapnali Pode <SP00501638@techmahindra.com>

diff --git a/docs/submodules/aai/esr-server.git b/docs/submodules/aai/esr-server.git
index 031f91b..602b548 160000 (submodule)
--- a/docs/submodules/aai/esr-server.git
+++ b/docs/submodules/aai/esr-server.git
@@ -1 +1 @@
-Subproject commit 031f91bada11ac58f5ccba64c9588c94c7996bab
+Subproject commit 602b54865f4f47b491848b83417c5c0d05bfebe7