Revert "pulseaudio : bump to version 3.0"

This reverts commit d3bde0a64edb5a3392314d2cdd2c4e4057d15831.

This wasn't supposed to be applied to master.

package/multimedia/pulseaudio/pulseaudio.mk

@@ -3,7 +3,8 @@
 # pulseaudio
 #
 ################################################################################
-PULSEAUDIO_VERSION = 3.0
+
+PULSEAUDIO_VERSION = 2.1
 PULSEAUDIO_SITE = http://freedesktop.org/software/pulseaudio/releases/
 PULSEAUDIO_INSTALL_STAGING = YES
 PULSEAUDIO_CONF_OPT = \
@@ -59,7 +60,6 @@ endef
 PULSEAUDIO_POST_PATCH_HOOKS += PULSEAUDIO_FORCE_CC
 endif
 
-PULSEAUDIO_CONF_OPT += $(if $(BR2_ARM_ENABLE_NEON),--enable-neon-opt=yes,--enable-neon-opt=no)
 # pulseaudio alsa backend needs pcm/mixer apis
 ifneq ($(BR2_PACKAGE_ALSA_LIB_PCM)$(BR2_PACKAGE_ALSA_LIB_MIXER),yy)
 PULSEAUDIO_CONF_OPT += --disable-alsa