[Xamarin.Android.Build.Tasks] Cleanup default startup profiles (#3126)

Context: https://github.com/radekdoulik/aotprofile-tool

Cleanup the `*.aotprofile` files to remove the captured
"app specific" module.

The profiles were updated with `aotprofile-tool`:

	$ aotprofile-tool -sd --filter-module='^(?!Xamarin.Forms.Performance.Integration.Droid)' startup-xf.aotprofile -o new.startup-xf.aotprofile
	Modules:
		41C38B0A-2032-45CE-8638-0299CED65330 mscorlib
		0326DF03-2158-4F7A-9A2B-B7A9419F021D Mono.Android
		8FB63BB4-1195-4173-A9ED-0EC341B07C32 System
		74C06E06-C1C7-4A4C-B64E-EAC7DBB08BBC Java.Interop
		11E2319F-6A26-461C-9C46-C972248BEE4B System.Core
		7999CC4B-D566-4ECA-8A72-469344172CA3 Xamarin.Forms.Platform.Android
		D754F8AE-503C-41C8-B16F-647FC662507A Xamarin.Android.Support.v7.AppCompat
		929ECB6D-1171-4C66-8470-DD32AC608969 Xamarin.Android.Support.Fragment
		F841E23B-59A8-4AE2-9A84-D2FC1D891B4A Xamarin.Forms.Core
		945CCBF8-C2DB-468B-B3BD-D7ACA37B69AD Xamarin.Forms.Performance.Integration
		AF20FA19-F07E-4BD4-B5ED-104706EA660E Xamarin.Forms.Xaml
		629C84F8-0988-42EF-8BC5-872173A0A71F FormsViewGroup
		60398815-8E62-487E-A553-781F56A0849D Xamarin.Android.Support.Design
		F0C550D7-665A-40B5-A307-8E9B49976D87 Xamarin.Android.Support.Core.UI
		23A34485-DE75-440E-BA9D-E235F664E990 Xamarin.Android.Support.Compat
	Summary:
		Modules:         15  (of 16)
		Types:          864  (of 907)
		Methods:      4,220  (of 4230)

and the XA profile:

	$ aotprofile-tool -sd --filter-module='^(?!xat_latests_and_greatest_vsmac_8._1)' startup.aotprofile -o new.startup.aotprofile
	Modules:
		401C5F5A-AA78-4AC8-9C96-28B1BC912121 mscorlib
		F60450ED-3217-41BF-8F49-05AB02A7C340 Mono.Android
		058B5AF1-F84C-4B03-BE24-C3C6DFCC1CD0 System
		3E31FA02-AF05-4AD6-9F07-7FA8D1D8B1C7 Java.Interop
		77EFA9FA-E91E-43C7-A013-84A1AA042C34 System.Core
		81E8A8C3-C4AF-49B8-9F48-319C0125F39F Xamarin.Android.Support.v7.AppCompat
		BF568AED-5C7F-4B02-955A-BB8479029F7B Xamarin.Android.Support.Fragment
		86A60DF4-5826-41BD-8A9D-6D2DD83D3638 Xamarin.Essentials
		E87F1DC0-363D-41AD-BA63-52D7176A067A Xamarin.Android.Support.Design
	Summary:
		Modules:          9  (of 10)
		Types:          207  (of 221)
		Methods:        929  (of 932)