Java chaincode failing to build

[davidkel]

Java chaincode has been failing to build (maven issues probably), also the dependencies specified in gradle are different between the 2 java chaincodes. I am not a fan of Java chaincode for fabric for a variety of reasons. Caliper-benchmarks has 2 java chaincodes

• fixed-asset
• fabcar

I propose we delete the fabcar java chaincode and tests. We already have go and node and just leave fixed-asset to show performance comparisons of java chaincode vs other chaincode (it performs poorly). But we need to fix the gradle info

repositories {
    mavenLocal()
    mavenCentral()
    maven {
        url 'https://jitpack.io'
    }
 

I think should suffice
Then we can consider re-enabling builds for java