Remove duplicate copies of migration docs
Remove duplicate copies of migration docs

Fixup for commit 133f66538dbf266be3c99b34f1eeee0a5e6068ac which
duplicated the contents of most of the migration documentation by
splitting it out into separate files but keeping the original file
intact (with a rename).

This removes the duplicated content from the renamed file.

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