Remove proposal (#415) #347

Job	Run time
generate-verifiable-conditional-vault	4m 44s
generate-verifiable-launchpad-v7	5m 10s
generate-verifiable-price-based-performance-package	4m 30s
generate-verifiable-launchpad-v6	5m 10s
generate-verifiable-bid-wall	4m 27s
generate-verifiable-futarchy	5m 0s
	29m 1s

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