Remove genindex generation (#94) #450

Job	Run time
setup	1s
generate-example (lode-linear)	3m 6s
generate-example (roy-gch)	3m 26s
generate-example (dos-align)	5m 51s
generate-example (lpr)	3m 11s
generate-example (batch-cp2k)	1m 36s
generate-example (gaas-map)	4m 1s
generate-example (pi-metad)	4m 11s
generate-example (sample-selection)	3m 29s
generate-example (thermostats)	2m 44s
generate-example (heat-capacity)	2m 16s
generate-example (periodic-hamiltonian)	6m 37s
generate-example (path-integrals)	1m 41s
build-and-publish	43s
	42m 53s

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