[Chicken-janitors] #105: remove "benchmark" mode, replace with -O5

[Chicken Trac]

#105: remove "benchmark" mode, replace with -O5
--------------------------+-------------------------------------------------
 Reporter:  felix         |       Owner:       
     Type:  task          |      Status:  new  
 Priority:  minor         |   Milestone:  4.3.0
Component:  core-pending  |     Version:  4.2.x
 Keywords:                |  
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 Benchmark mode is somewhat silly and also defaults to fixnum mode, which
 is not always desired. Replace with a new optimize-level (5) that uses
 non-safe code and libraries and optimizes for maximum performance (but
 doesn't change number-type).

 See commit a8438327a114280f333d0ea97ed2e8665cb262e4

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Ticket URL: <http://www.irp.oist.jp/trac/chicken/ticket/105>
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Chicken Scheme is a compiler for the Scheme programming language.