wscript: drop unused APPNAME assignment in libs

https://waf.io/book/ says
  By default, the project name and version are set to noname and 1.0. To
  change them, it is necessary to provide two additional variables in
  the top-level project file

- and waf code inspection confirms that waf itself only will use the top
level APPNAME.

Also, the 'waf dist' comment doesn't seem relevant - especially after
this change - and is removed too.

(Note: libs/evoral/wscript and libs/temporal/wscript still use APPNAME
for other purposes.)

libs/audiographer/wscript

@@ -13,9 +13,6 @@ AUDIOGRAPHER_VERSION = '0.0.0'
 #   0.0.0 = 0,0,0
 AUDIOGRAPHER_LIB_VERSION = '0.0.0'
 
-# Variables for 'waf dist'
-APPNAME = 'audiographer'
-
 # Mandatory variables
 top = '.'
 out = 'build'

libs/canvas/wscript

@@ -14,8 +14,6 @@ CANVAS_VERSION = "%s.%s.%s" % (MAJOR, MINOR, MICRO)
 # micro increment <=> no interface changes
 CANVAS_LIB_VERSION = '0.0.0'
 
-# Variables for 'waf dist'
-APPNAME = 'canvas'
 I18N_PACKAGE = 'libcanvas'
 
 # Mandatory variables

libs/evoral/wscript

@@ -14,7 +14,6 @@ EVORAL_VERSION = '0.0.0'
 #   0.0.0 = 0,0,0
 EVORAL_LIB_VERSION = '0.0.0'
 
-# Variables for 'waf dist'
 APPNAME = 'evoral'
 
 # Mandatory variables

libs/fluidsynth/wscript

@@ -7,8 +7,6 @@ MINOR = '0'
 MICRO = '1'
 LIBFLUIDSYNTH_VERSION = "%s.%s.%s" % (MAJOR, MINOR, MICRO)
 
-# Variables for 'waf dist'
-APPNAME = 'libltc'
 I18N_PACKAGE = 'libfluidsynth'
 
 # Mandatory variables

libs/gtkmm2ext/wscript

@@ -15,8 +15,6 @@ GTKMM2EXT_VERSION = "%s.%s.%s" % (MAJOR, MINOR, MICRO)
 # micro increment <=> no interface changes
 GTKMM2EXT_LIB_VERSION = '0.8.3'
 
-# Variables for 'waf dist'
-APPNAME = 'gtkmm2ext'
 I18N_PACKAGE = 'gtkmm2ext3'
 
 gtkmm2ext_sources = [

libs/hidapi/wscript

@@ -5,9 +5,6 @@ import sys
 
 HIDAPI_VERSION = '0.8.0'
 
-# Variables for 'waf dist'
-APPNAME = 'hidapi'
-
 # Mandatory variables
 top = '.'
 out = 'build'

libs/libltc/wscript

@@ -13,8 +13,6 @@ LIBLTC_VERSION = "%s.%s.%s" % (MAJOR, MINOR, MICRO)
 # micro increment <=> no interface changes
 LIBLTC_LIB_VERSION = '1.1.1'
 
-# Variables for 'waf dist'
-APPNAME = 'libltc'
 I18N_PACKAGE = 'libltc'
 
 # Mandatory variables

libs/lua/wscript

@@ -1,8 +1,6 @@
 #!/usr/bin/env python
 from waflib.extras import autowaf as autowaf
 
-# Variables for 'waf dist'
-APPNAME = 'liblua'
 I18N_PACKAGE = 'liblua'
 
 # Mandatory variables

libs/midi++2/wscript

@@ -13,9 +13,6 @@ LIBMIDIPP_VERSION = "%s.%s.%s" % (MAJOR, MINOR, MICRO)
 # micro increment <=> no interface changes
 LIBMIDIPP_LIB_VERSION = '4.1.0'
 
-# Variables for 'waf dist'
-APPNAME = 'libmidipp'
-
 # Mandatory variables
 top = '.'
 out = 'build'

libs/pbd/wscript

@@ -17,8 +17,6 @@ LIBPBD_VERSION = "%s.%s.%s" % (MAJOR, MINOR, MICRO)
 LIBPBD_LIB_VERSION = '4.1.0'
 LIBPBD_MAJOR_VERSION = '4'
 
-# Variables for 'waf dist'
-APPNAME = 'libpbd'
 I18N_PACKAGE = 'libpbd4'
 
 # Mandatory variables

libs/ptformat/wscript

@@ -10,8 +10,6 @@ LIBPTFORMAT_VERSION = '0.0.0'
 # micro increment <=> no interface changes
 LIBPTFORMAT_LIB_VERSION = '0.0.0'
 
-# Variables for 'waf dist'
-APPNAME = 'libptformat'
 I18N_PACKAGE = 'libptformat'
 
 # Mandatory variables

libs/qm-dsp/wscript

@@ -10,9 +10,6 @@ QM_DSP_VERSION = '1.7.1'
 # micro increment <=> no interface changes
 QM_DSP_LIB_VERSION = '1.7.1'
 
-# Variables for 'waf dist'
-APPNAME = 'qm-dsp'
-
 # Mandatory variables
 top = '.'
 out = 'build'

libs/surfaces/wscript

@@ -11,9 +11,6 @@ LIBSURFACES_VERSION = '4.1.0'
 # micro increment <=> no interface changes
 LIBSURFACES_LIB_VERSION = '4.1.0'
 
-# Variables for 'waf dist'
-APPNAME = 'libsurfaces'
-
 # Mandatory variables
 top = '.'
 out = 'build'

libs/temporal/wscript

@@ -18,7 +18,6 @@ TEMPORAL_VERSION = "%s.%s.%s" % (MAJOR, MINOR, MICRO)
 # micro increment <=> no interface changes
 TEMPORAL_LIB_VERSION = '0.0.0'
 
-# Variables for 'waf dist'
 APPNAME = 'temporal'
 I18N_PACKAGE = 'libtemporal'
 

libs/vamp-pyin/wscript

@@ -8,9 +8,6 @@ import os
 # micro increment <=> no interface changes
 VAMP_PYIN_LIB_VERSION = '0.0.0'
 
-# Variables for 'waf dist'
-APPNAME = 'libardourvamppyin'
-
 # Mandatory variables
 top = '.'
 out = 'build'

libs/waveview/wscript

@@ -13,8 +13,6 @@ WAVEVIEW_VERSION = "%s.%s.%s" % (MAJOR, MINOR, MICRO)
 # micro increment <=> no interface changes
 WAVEVIEW_LIB_VERSION = '0.0.0'
 
-# Variables for 'waf dist'
-APPNAME = 'waveview'
 I18N_PACKAGE = 'libwaveview'
 
 # Mandatory variables

libs/widgets/wscript

@@ -13,8 +13,6 @@ WIDGETS_VERSION = "%s.%s.%s" % (MAJOR, MINOR, MICRO)
 # micro increment <=> no interface changes
 WIDGETS_LIB_VERSION = '0.0.0'
 
-# Variables for 'waf dist'
-APPNAME = 'widgets'
 I18N_PACKAGE = 'libwidgets'
 
 # Mandatory variables

libs/zita-convolver/wscript

@@ -13,8 +13,6 @@ ZCONVOLVER_VERSION = "%s.%s.%s" % (MAJOR, MINOR, MICRO)
 # micro increment <=> no interface changes
 ZCONVOLVER_LIB_VERSION = '4.0.0'
 
-# Variables for 'waf dist'
-APPNAME = 'zita-convolver'
 I18N_PACKAGE = 'libzita-convolver'
 
 # Mandatory variables

libs/zita-resampler/wscript

@@ -13,8 +13,6 @@ ZRESAMPLER_VERSION = "%s.%s.%s" % (MAJOR, MINOR, MICRO)
 # micro increment <=> no interface changes
 ZRESAMPLER_LIB_VERSION = '1.6.0'
 
-# Variables for 'waf dist'
-APPNAME = 'zita-resampler'
 I18N_PACKAGE = 'libzita-resampler'
 
 # Mandatory variables