chore: remove examples marked for removal

.github/workflows/ninja_pr_checks.yml

@@ -31,7 +31,6 @@ jobs:
 
           examples=()
           declare -A example_paths=(
-            ["My Crypto Blog (Frontend)"]="hosting/my_crypto_blog"
             ["React (Frontend)"]="hosting/react"
             ["OISY Signer Demo (Frontend)"]="hosting/oisy-signer-demo"
             ["Motoko backend (Motoko)"]="motoko/backend_only"
@@ -50,8 +49,6 @@ jobs:
             ["Superheroes (Motoko)"]="motoko/superheroes"
             ["Threshold ECDSA (Motoko)"]="motoko/threshold-ecdsa"
             ["Threshold Schnorr (Motoko)"]="motoko/threshold-schnorr"
-            ["Tokenmania (Motoko)"]="motoko/tokenmania"
-            ["NFT Creator (Motoko)"]="motoko/nft-creator"
             ["Who Am I (Motoko)"]="motoko/who_am_i"
             ["Rust backend (Rust)"]="rust/backend_only"
             ["Rust backend Wasm64 (Rust)"]="rust/backend_wasm64"
@@ -74,7 +71,6 @@ jobs:
             ["Send HTTP Post (Rust)"]="rust/send_http_post"
             ["SIMD (Rust)"]="rust/simd"
             ["Threshold ECDSA (Rust)"]="rust/threshold-ecdsa"
-            ["Tokenmania (Rust)"]="rust/tokenmania"
             ["Unit Testable Canister (Rust)"]="rust/unit_testable_rust_canister"
             ["Who Am I (Rust)"]="rust/who_am_i"
             ["Photo Gallery (Rust)"]="rust/photo_gallery"