Revert "g_date_time_format: support %D"
Revert "g_date_time_format: support %D"

This reverts commit 46ce7907720074089040275280bb20208bafeb6a.

git-bz mishap (I think?)

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