Lowered keychain version to prevent upgrading sdk and removed mapbox as it makes building release harder and increased apk size

android/build.gradle

@@ -2,10 +2,10 @@
 
 buildscript {
     ext {
-        buildToolsVersion = "29.0.3"
+        buildToolsVersion = "28.0.3"
         minSdkVersion = 21
-        compileSdkVersion = 29
-        targetSdkVersion = 29
+        compileSdkVersion = 28
+        targetSdkVersion = 28
     }
     repositories {
         google()

package.json

@@ -24,7 +24,6 @@
     "@react-native-community/masked-view": "^0.1.10",
     "@react-native-community/push-notification-ios": "^1.2.2",
     "@react-native-community/slider": "^3.0.0",
-    "@react-native-mapbox-gl/maps": "^8.1.0-rc.1",
     "@react-navigation/bottom-tabs": "^5.5.2",
     "@react-navigation/native": "^5.5.1",
     "@react-navigation/stack": "^5.5.1",
@@ -40,7 +39,7 @@
     "react-native-collapsible": "^1.5.2",
     "react-native-gesture-handler": "^1.6.1",
     "react-native-image-modal": "^1.0.8",
-    "react-native-keychain": "^6.1.1",
+    "react-native-keychain": "6.0.0",
     "react-native-linear-gradient": "^2.5.6",
     "react-native-localize": "^1.4.0",
     "react-native-modalize": "^2.0.4",
@@ -62,7 +61,7 @@
     "@babel/runtime": "^7.6.2",
     "@react-native-community/eslint-config": "^0.0.5",
     "babel-jest": "^25.5.1",
-    "eslint": "^5.0.0",
+    "eslint": "6.5.1",
     "flow-bin": "^0.123.0",
     "jest": "^25.5.3",
     "jest-extended": "^0.11.5",