RFR: 8182119: jdk.hotspot.agent's META-INF/services/com.sun.jdi.connect.Connector no longer needed

[Daniil Titov]

Please review a trivial fix that removes the service configuration file. It is no longer needed
since these SA JDI providers were removed in JDK 9 [3].

Tier1-tier3 tests successfully passed.

[1] Bug: https://bugs.openjdk.java.net/browse/JDK-8182119
[2] Webrev: https://cr.openjdk.java.net/~dtitov/8182119/webrev.01/ 
[3] https://bugs.openjdk.java.net/browse/JDK-8158050 

Thanks!
-Daniil