Bug 1606274 - Remove always-true MOZ_PHOENIX macro. r=firefox-build-system-reviewers,rstewart

MOZ_PHOENIX was a macro added back in 2002 to differentiate SeaMonkey and Phoenix appshell bits. The earliest references to MOZ_PHOENIX I can find in Gecko's pre-hg history are bug 161448, bug 213228, bug 243091, and 05ef2e9b38.

Differential Revision: https://phabricator.services.mozilla.com/D58358

--HG--
extra : moz-landing-system : lando

browser/app/moz.build

@@ -69,7 +69,6 @@ if CONFIG['CC_TYPE'] == 'clang-cl':
 
 if CONFIG['OS_ARCH'] == 'WINNT':
     RCINCLUDE = 'splash.rc'
-    DEFINES['MOZ_PHOENIX'] = True
     DIRS += [
         'winlauncher',
     ]

browser/confvars.sh

@@ -6,7 +6,6 @@
 MOZ_APP_BASENAME=Firefox
 MOZ_APP_VENDOR=Mozilla
 MOZ_UPDATER=1
-MOZ_PHOENIX=1
 
 if test "$OS_ARCH" = "WINNT"; then
   if ! test "$HAVE_64BIT_BUILD"; then

old-configure.in

@@ -1674,22 +1674,11 @@ if test -n "$WITH_APP_BASENAME" ; then
     MOZ_APP_BASENAME="$WITH_APP_BASENAME"
 fi
 
-# Special cases where we need to AC_DEFINE something. Also a holdover for apps
-# that haven't made a confvars.sh yet. Don't add new stuff here, use
-# MOZ_BUILD_APP.
-case "$MOZ_BUILD_APP" in
-browser)
-  AC_DEFINE(MOZ_PHOENIX)
-  ;;
-esac
-
 # Graphene is a desktop runtime for running applications with a HTML UI.
 if test -n "$MOZ_GRAPHENE"; then
     AC_DEFINE(MOZ_GRAPHENE)
 fi
 
-AC_SUBST(MOZ_PHOENIX)
-
 dnl ========================================================
 dnl Ensure Android SDK and build-tools versions depending on
 dnl mobile target.

toolkit/xre/nsNativeAppSupportWin.h

@@ -13,17 +13,13 @@
 
 // Constants identifying Win32 "native" resources.
 
-#ifdef MOZ_PHOENIX
-
-#  define IDI_APPICON 1
-#  define IDI_DOCUMENT 2
-#  define IDI_NEWWINDOW 3
-#  define IDI_NEWTAB 4
-#  define IDI_PBMODE 5
-#  ifndef IDI_APPLICATION
-#    define IDI_APPLICATION 32512
-#  endif
-
+#define IDI_APPICON 1
+#define IDI_DOCUMENT 2
+#define IDI_NEWWINDOW 3
+#define IDI_NEWTAB 4
+#define IDI_PBMODE 5
+#ifndef IDI_APPLICATION
+#  define IDI_APPLICATION 32512
 #endif
 
 // String that goes in the WinXP Start Menu.