Scale testing of Android Targets to just Linux

AQT is for CI/CD. Users might develop Android Apps on Mac/Windows but
they are far more likely to choose the most available platform for CI/CD
of their apps: Linux.

azure-pipelines.yml

@@ -39,20 +39,6 @@ jobs:
         TARGET: ios
         ARCH: ios
         ARCHDIR: ios
-      QT 5.13.0 mac android android_x86:
-        PYTHON_VERSION: '3.7'
-        QT_VERSION: 5.13.0
-        HOST: mac
-        TARGET: android
-        ARCH: android_x86
-        ARCHDIR: android_x86
-      QT 5.13.0 mac android android_armv7:
-        PYTHON_VERSION: '3.7'
-        QT_VERSION: 5.13.0
-        HOST: mac
-        TARGET: android
-        ARCH: android_armv7
-        ARCHDIR: android_armv7
 - job: Windows
   pool:
     vmImage: vs2017-win2016
@@ -123,20 +109,6 @@ jobs:
         TARGET: desktop
         ARCH: win32_mingw73
         ARCHDIR: mingw73_32
-      QT 5.13.0 windows android android_x86:
-        PYTHON_VERSION: '3.7'
-        QT_VERSION: 5.13.0
-        HOST: windows
-        TARGET: android
-        ARCH: android_x86
-        ARCHDIR: android_x86
-      QT 5.13.0 windows android android_armv7:
-        PYTHON_VERSION: '3.7'
-        QT_VERSION: 5.13.0
-        HOST: windows
-        TARGET: android
-        ARCH: android_armv7
-        ARCHDIR: android_armv7
 - job: Linux
   pool:
     vmImage: ubuntu-16.04

generate_azure_pipelines_yml.py

@@ -88,12 +88,14 @@ windows_build_jobs.extend(
     ]
 )
 
-# All Androids for all platforms
+# Androids for Linux platforms
+# aqt is for CI/CD systems!
+# Users might develop on Win/Mac, but are most likely to use Linux for CI/CD with
+# the Android ecosystem.
 
-for android_arch in [ 'android_x86', 'android_armv7', ]:
+for android_arch in ['android_x86', 'android_armv7']:
-    for platform_build_jobs in all_platform_build_jobs:
+    linux_build_jobs.append(
-        platform_build_jobs.build_jobs.append(
+        BuildJob('5.13.0', 'linux', 'android', android_arch, android_arch)
-            BuildJob('5.13.0', platform_build_jobs.platform, 'android', android_arch, android_arch)
     )
 
 matrices = {}