autogen.sh: remove aclocal calls, not needed anymore

Since we stop using autoconf macros (such as PKG_CHECK_MODULES;
see [1]) in [2], aclocal is not likely to be needed anymore.

[1] http://tirania.org/blog/archive/2012/Oct-20.html
[2] https://github.com/fsharp/fsharp/commit/cded42fb1929f9ca1edcb5ecc38c052287caba0e
Merge pull request #98 from rneatherway/master

Fix for https://github.com/fsharp/fsharp/issues/97
Add ngen step to readme
Create FSharp.Core.Portable.fsproj
Create FSharp.Core.Portable.sln
Add FX_NO_STRUCTURAL_EQUALITY to portable-net4+sl4+wp71+win8
Force resolution to Portable version of .dlls
Switch to Profile88 and add more missing defines
Fix compilation errors in control.fs
Fix compilation for wp7 target
Fix compilation errors in control.fs
Fix compilation errors in control.fs
Update Readme to state correct Portable Profile
Fix reference assemblies path for wp7 target
Missing defines for wp7 target
Create new FX_NO_QUOTATIONS_COMPILE define
Fix compilation errors in Linq.fs for wp7 target
Add old version of profile as portable-net45+sl5+win8
Add old version of profile as portable-net45+sl5+win8
Update Readme to have both Profile47 and Profile88