Reducing to one owner (#45190)

Author: Cam Soper

.github/CODEOWNERS

@@ -93,7 +93,7 @@
 
 ############### .NET Core ########################
 # What's New
-/docs/core/whats-new/ @camsoper @gewarren @dotnet/docs
+/docs/core/whats-new/ @camsoper @dotnet/docs
 # Deployment
 /docs/core/deploying/ @adegeo @dotnet/docs
 # Diagnostics
@@ -105,7 +105,7 @@
 # Install
 /docs/core/install/ @adegeo @dotnet/docs
 # Breaking changes
-/docs/core/compatibility/ @camsoper @gewarren @dotnet/docs
+/docs/core/compatibility/ @camsoper @dotnet/docs
 # Project SDKs
 /docs/core/project-sdk/ @gewarren @dotnet/docs
 # Config settings
@@ -174,7 +174,7 @@
 # Data
 /docs/standard/data/ @gewarren @dotnet/docs
 # Data - SQLite
-/docs/standard/data/sqlite/ @ajcvickers @dotnet/docs
+/docs/standard/data/sqlite/ @dotnet/docs
 # Datetime
 /docs/standard/datetime/ @adegeo @dotnet/docs
 # Design guidelines