Remove Nano S target #1310

Job	Run time
Compilation for X, S+, Stax and Flex (nanox, $NANOX_SDK)	1m 42s
Compile the UX-less version of the app on Nano S+ for performance tests	1m 25s
Compilation for X, S+, Stax and Flex (nanosp, $NANOSP_SDK)	1m 44s
Compilation for X, S+, Stax and Flex (stax, $STAX_SDK)	1m 58s
Compilation for X, S+, Stax and Flex (flex, $FLEX_SDK)	2m 4s
Performance report	4m 20s
Tests with the Python library and legacy Bitcoin app	37s
Tests on mainnet (nanox)	26s
Unit test	1m 45s
Tests on mainnet (nanosp)	31s
Tests on mainnet (stax)	26s
Tests with the JS library	1m 53s
Tests on mainnet (flex)	5m 25s
Tests for rust client library	1m 38s
	25m 54s

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