Revert "firefox: 68esr: Provide symbolic link for python2.7 when firefox 68esr is built"

This reverts commit df57901.

Author: shr-project

meta-firefox/classes/mozilla.bbclass

@@ -3,7 +3,7 @@ DEPENDS += "gnu-config-native virtual/libintl libxt libxi zip-native gtk+"
 
 SRC_URI += "file://mozconfig"
 
-inherit pkgconfig pythonnative
+inherit pkgconfig
 
 EXTRA_OECONF = "--target=${TARGET_SYS} --host=${BUILD_SYS} \
                 --with-toolchain-prefix=${TARGET_SYS}- \
@@ -62,15 +62,6 @@ mozilla_do_configure() {
 }
 
 mozilla_do_compile() {
-
-	# This is a hack/workaround necessary for building firefox 68esr on
-	# Centos 7.6/Fedora
-	# It doesn't do any harm on other distros - like Ubuntu 18.04 or Debian 10
-	# Moreover, it mimics 'include pythonnative', which cannot be used as it
-	# causes errors during firefox 68esr configuration stage
-	ln -snf python-native/python2.7 ${STAGING_BINDIR_NATIVE}/python2.7
-	ln -snf python-native/python2.7 ${STAGING_BINDIR_NATIVE}/python
-
 	mozilla_run_mach build
 }
 

meta-firefox/conf/layer.conf

@@ -4,6 +4,14 @@ BBPATH .= ":${LAYERDIR}"
 # We have a recipes directory, add to BBFILES
 BBFILES += "${LAYERDIR}/recipes-*/*/*.bb ${LAYERDIR}/recipes-*/*/*.bbappend"
 
+# this is only temporary to allow building firefox on hosts without any python2
+# were it would fail like this:
+# ERROR: firefox-68.9.0esr-r0 do_configure: Execution of '/OE/build/oe-core/tmp-glibc/work/core2-64-oe-linux/firefox/68.9.0esr-r0/temp/run.do_configure.2697230' failed with exit code 127:
+# ./mach: 9: exec: python: not found
+# this should be removed when firefox is upgraded to 78 ESR or newer which contains:
+# https://bugzilla.mozilla.org/show_bug.cgi?id=1473498
+HOSTTOOLS += "python python2.7"
+
 SIGGEN_EXCLUDERECIPES_ABISAFE += " \
    firefox-addon-webconverger \
    firefox-l10n-ach \