Update CODEOWNERS

Author: montyly

CODEOWNERS

@@ -1,8 +1,3 @@
 *                                  @montyly
-/development-guidelines/           @0xicingdeath 
 /program-analysis/echidna/         @ggrieco-tob
-/not-so-smart-contracts/algorand/  @S3v3ru5
-/not-so-smart-contracts/cairo/     @technovision99 
-/not-so-smart-contracts/cosmos/    @GrosQuildu 
-/not-so-smart-contracts/substrate/ @0xicingdeath 
 /learn_evm/                        @bohendo