deleted old license and restrictions mentioned in mame.txt (nw)

Author: mmicko

docs/mame.txt

@@ -6,14 +6,14 @@ MAME is a trademark owned by Nicola Salmoria
 ----------
 I. Purpose
 ----------
-MAME is strictly a non-profit project. Its main purpose is to be a
-reference to the inner workings of the emulated arcade machines. This is
-done both for educational purposes and for preservation purposes, in
-order to prevent many historical games from disappearing forever once the
-hardware they run on stops working. Of course, in order to preserve the
-games and demonstrate that the emulated behavior matches the original,
-you must also be able to actually play the games. This is considered a
-nice side effect, and is not MAME's primary focus.
+MAME main purpose is to be a refefence to the inner workings of 
+the emulated arcade machines. This is done both for educational purposes 
+and for preservation purposes, in order to prevent many historical games 
+from disappearing forever once the hardware they run on stops working.
+Of course, in order to preserve the games and demonstrate that the 
+emulated behavior matches the original, you must also be able to actually 
+play the games. This is considered a nice side effect, and is not MAME's 
+primary focus.
 
 It is not our intention to infringe on any copyrights or patents on the
 original games. All of MAME's source code is either our own or freely
@@ -26,7 +26,8 @@ executable.
 --------
 II. Cost
 --------
-MAME is free. Its source code is free. Selling either is not allowed.
+MAME is free. Its source code is free. Project as whole is under GPL-2.0
+but most of code (including core functionality) is under BSD-3.
 
 
 ----------------
@@ -46,25 +47,6 @@ CD, or hard disk images.
 --------------------
 IV. Derivative Works
 --------------------
-Derivative works are allowed under the MAME license. However, you are
-discouraged from providing specific functionality that goes against the
-philosophy of the MAME team. Specifically:
-
-* Do not add games which are more recent than 3 years old, or which are
-still being sold new by the company that produced them. MAME is not
-intended to be a platform that competes with arcade games that are still
-being actively sold.
-
-* Do not provide a means of generating a list of games that specifically
-identifies those games for which the user does not have image files. This
-only encourages users to seek out sources for illegal ROM, CD, and hard
-disk images in order to "complete" their collection.
-
-* Do not remove the startup screen that contains information about why
-certain non-working games don't work. This only serves to generate a
-bunch of useless email traffic to the developers asking why the games
-don't work.
-
 Because the name MAME is trademarked, you must abide by the rules of the
 trademark usage if you wish to use "MAME" as part of the name your
 derivative work. In general, this means you must request permission,