Drop unused AC_SUBST
Drop unused AC_SUBST

DISABLE_MEM_POOLS is only used as define.

cosimoc/glib,ieei/glib,justinkb/aosp-bluez.glib,tchakabam/glib,Distrotech/glib,Distrotech/glib,pstglia/platform-external-bluetooth-glib,pstglia/external-bluetooth-glib,tchakabam/glib,cosimoc/glib,cention-sany/glib,mzabaluev/glib,antono/glib,mzabaluev/glib,cention-sany/glib,MathieuDuponchelle/glib,antono/glib,johne53/MB3Glib,MathieuDuponchelle/glib,MathieuDuponchelle/glib,tamaskenez/glib,pstglia/external-bluetooth-glib,bluez-android/glib,Distrotech/glib,tchakabam/glib,MathieuDuponchelle/glib,lukasz-skalski/glib,iConsole/Console-OS_external_bluetooth_glib,johne53/MB3Glib,darren-clark/android_platform_external_bluetooth_glib,krichter722/glib,gale320/glib,iConsole/Console-OS_external_bluetooth_glib,djdeath/glib,cosimoc/glib,justinkb/aosp-bluez.glib,iConsole/Console-OS_external_bluetooth_glib,01org/android-bluez-glib,iConsole/Console-OS_external_bluetooth_glib,pstglia/external-bluetooth-glib,krichter722/glib,johne53/MB3Glib,lukasz-skalski/glib,mzabaluev/glib,pstglia/external-bluetooth-glib,johne53/MB3Glib,lukasz-skalski/glib,darren-clark/android_platform_external_bluetooth_glib,tamaskenez/glib,darren-clark/android_platform_external_bluetooth_glib,cosimoc/glib,ieei/glib,justinkb/aosp-bluez.glib,01org/android-bluez-glib,cosimoc/glib,darren-clark/android_platform_external_bluetooth_glib,mzabaluev/glib,tchakabam/glib,bluez-android/glib,endlessm/glib,johne53/MB3Glib,johne53/MB3Glib,djdeath/glib,gale320/glib,endlessm/glib,mzabaluev/glib,lukasz-skalski/glib,cention-sany/glib,iConsole/Console-OS_external_bluetooth_glib,Distrotech/glib,01org/android-bluez-glib,pstglia/platform-external-bluetooth-glib,bluez-android/glib,endlessm/glib,krichter722/glib,krichter722/glib,antono/glib,gale320/glib,gale320/glib,bluez-android/glib,darren-clark/android_platform_external_bluetooth_glib,cention-sany/glib,01org/android-bluez-glib,djdeath/glib,cention-sany/glib,tamaskenez/glib,endlessm/glib,gale320/glib,pstglia/platform-external-bluetooth-glib,djdeath/glib,ieei/glib,MathieuDuponchelle/glib,krichter722/glib,01org/android-bluez-glib,justinkb/aosp-bluez.glib,antono/glib,pstglia/platform-external-bluetooth-glib,ieei/glib,lukasz-skalski/glib,tamaskenez/glib,Distrotech/glib,justinkb/aosp-bluez.glib,endlessm/glib,ieei/glib,bluez-android/glib,tchakabam/glib,pstglia/external-bluetooth-glib,djdeath/glib,pstglia/platform-external-bluetooth-glib,tamaskenez/glib