Remove unused packages

Author: guidezpl

.github/ISSUE_TEMPLATE/bug_report.yml

@@ -11,10 +11,6 @@ body:
         - All packages
         - google_fonts
         - dynamic_color
-        - adaptive_breakpoints
-        - adaptive_navigation
-        - adaptive_components
-        - symbols
     validations:
       required: true
   - type: checkboxes

.github/ISSUE_TEMPLATE/feature_request.yml

@@ -11,10 +11,6 @@ body:
         - All packages
         - google_fonts
         - dynamic_color
-        - adaptive_breakpoints
-        - adaptive_navigation
-        - adaptive_components
-        - symbols
     validations:
       required: true
   - type: textarea

.github/dependabot.yml

@@ -32,20 +32,3 @@ updates:
       pub-dependencies:
         patterns:
           - "*"
-  # Unmaintained / unreleased
-  # - package-ecosystem: "pub"
-  #   directory: "packages/symbols"
-  #   schedule:
-  #     interval: "monthly"
-  # - package-ecosystem: "pub"
-  #   directory: "packages/adaptive_breakpoints"
-  #   schedule:
-  #     interval: "monthly"
-  # - package-ecosystem: "pub"
-  #   directory: "packages/adaptive_navigation"
-  #   schedule:
-  #     interval: "monthly"
-  # - package-ecosystem: "pub"
-  #   directory: "packages/adaptive_components"
-  #   schedule:
-  #     interval: "monthly"