fix(geth): remove unused txpool variables and align comment

Author: sashass1315

geth/geth-entrypoint

@@ -14,16 +14,12 @@ ADDITIONAL_ARGS=""
 OP_GETH_GCMODE="${OP_GETH_GCMODE:-full}"
 OP_GETH_SYNCMODE="${OP_GETH_SYNCMODE:-full}"
 
-# Add cache and txpool optimizations with defaults
+# Add cache optimizations with defaults
 GETH_CACHE="${GETH_CACHE:-20480}"
 GETH_CACHE_DATABASE="${GETH_CACHE_DATABASE:-20}"
 GETH_CACHE_GC="${GETH_CACHE_GC:-12}"
 GETH_CACHE_SNAPSHOT="${GETH_CACHE_SNAPSHOT:-24}"
 GETH_CACHE_TRIE="${GETH_CACHE_TRIE:-44}"
-GETH_TXPOOL_GLOBALQUEUE="${GETH_TXPOOL_GLOBALQUEUE:-6144}"
-GETH_TXPOOL_GLOBALSLOTS="${GETH_TXPOOL_GLOBALSLOTS:-30072}"
-GETH_TXPOOL_LIFETIME="${GETH_TXPOOL_LIFETIME:-10m}"
-TXPOOL_PRICE_LIMIT="${TXPOOL_PRICE_LIMIT:-50}"
 
 if [[ -z "$OP_NODE_NETWORK" ]]; then
     echo "expected OP_NODE_NETWORK to be set" 1>&2
@@ -89,4 +85,4 @@ exec ./geth \
     --cache.gc="$GETH_CACHE_GC" \
     --cache.snapshot="$GETH_CACHE_SNAPSHOT" \
     --cache.trie="$GETH_CACHE_TRIE" \
-    $ADDITIONAL_ARGS # intentionally unquoted
+    $ADDITIONAL_ARGS # intentionally unquoted