remove experimental server #996

Job	Run time
static analysis (Elixir 1.15.x \| Erlang/OTP 25.x)	19s
mix test windows (Elixir 1.13.x \| Erlang/OTP 22.x)	31m 41s
mix test windows (Elixir 1.13.x \| Erlang/OTP 23.x)	39m 47s
mix test windows (Elixir 1.13.x \| Erlang/OTP 24.x)	22m 53s
mix test windows (Elixir 1.13.x \| Erlang/OTP 25.x)	18m 40s
mix test windows (Elixir 1.14.x \| Erlang/OTP 23.x)	38m 14s
mix test windows (Elixir 1.14.x \| Erlang/OTP 24.x)	25m 46s
mix test windows (Elixir 1.14.x \| Erlang/OTP 25.x)	18m 35s
mix test windows (Elixir 1.15.x \| Erlang/OTP 24.x)	23m 10s
mix test windows (Elixir 1.15.x \| Erlang/OTP 25.x)	21m 56s
mix test (Elixir 1.13.x \| Erlang/OTP 22.x)	34m 20s
mix test (Elixir 1.13.x \| Erlang/OTP 23.x)	33m 39s
mix test (Elixir 1.13.x \| Erlang/OTP 24.x)	22m 24s
mix test (Elixir 1.13.x \| Erlang/OTP 25.x)	17m 31s
mix test (Elixir 1.14.x \| Erlang/OTP 23.x)	41m 1s
mix test (Elixir 1.14.x \| Erlang/OTP 24.x)	27m 34s
mix test (Elixir 1.14.x \| Erlang/OTP 25.x)	18m 48s
mix test (Elixir 1.15.x \| Erlang/OTP 24.x)	4m 57s
mix test (Elixir 1.15.x \| Erlang/OTP 25.x)	22m 2s
	7h 43m 17s

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