diff --git a/src/auth/ntlm/UserRequest.cc b/src/auth/ntlm/UserRequest.cc
index 378061e4538..7cd914d47cc 100644
--- a/src/auth/ntlm/UserRequest.cc
+++ b/src/auth/ntlm/UserRequest.cc
@@ -186,20 +186,23 @@ Auth::Ntlm::UserRequest::authenticate(HttpRequest * aRequest, ConnStateData * co
     /* get header */
     const char *proxy_auth = aRequest->header.getStr(type);
 
+    /* if proxy_auth is actually NULL, we'd better not manipulate it. */
+    if (!proxy_auth) {
+        debugs(29, 4, "WARNING: NTLM Authentication missing authorization header");
+        return;
+    }
+
     /* locate second word */
     const char *blob = proxy_auth;
 
-    /* if proxy_auth is actually NULL, we'd better not manipulate it. */
-    if (blob) {
-        while (xisspace(*blob) && *blob)
-            ++blob;
+    while (xisspace(*blob) && *blob)
+        ++blob;
 
-        while (!xisspace(*blob) && *blob)
-            ++blob;
+    while (!xisspace(*blob) && *blob)
+        ++blob;
 
-        while (xisspace(*blob) && *blob)
-            ++blob;
-    }
+    while (xisspace(*blob) && *blob)
+        ++blob;
 
     switch (user()->credentials()) {
 
diff --git a/src/http.cc b/src/http.cc
index 13b3432bae6..5030b7bfe39 100644
--- a/src/http.cc
+++ b/src/http.cc
@@ -2615,38 +2615,6 @@ HttpStateData::doneSendingRequestBody()
     sendComplete();
 }
 
-// more origin request body data is available
-void
-HttpStateData::handleMoreRequestBodyAvailable()
-{
-    if (eof || !Comm::IsConnOpen(serverConnection)) {
-        // XXX: we should check this condition in other callbacks then!
-        // TODO: Check whether this can actually happen: We should unsubscribe
-        // as a body consumer when the above condition(s) are detected.
-        debugs(11, DBG_IMPORTANT, "Transaction aborted while reading HTTP body");
-        return;
-    }
-
-    assert(requestBodySource != nullptr);
-
-    if (requestBodySource->buf().hasContent()) {
-        // XXX: why does not this trigger a debug message on every request?
-
-        if (flags.headers_parsed && !flags.abuse_detected) {
-            flags.abuse_detected = true;
-            debugs(11, DBG_IMPORTANT, "http handleMoreRequestBodyAvailable: Likely proxy abuse detected '" << request->client_addr << "' -> '" << entry->url() << "'" );
-
-            if (virginReply()->sline.status() == Http::scInvalidHeader) {
-                closeServer();
-                mustStop("HttpStateData::handleMoreRequestBodyAvailable");
-                return;
-            }
-        }
-    }
-
-    HttpStateData::handleMoreRequestBodyAvailable();
-}
-
 // premature end of the request body
 void
 HttpStateData::handleRequestBodyProducerAborted()
diff --git a/src/http.h b/src/http.h
index cd5e26f9df3..989625ab180 100644
--- a/src/http.h
+++ b/src/http.h
@@ -120,8 +120,6 @@ class HttpStateData : public Client
     std::optional<size_t> canBufferMoreReplyBytes() const;
     size_t maybeMakeSpaceAvailable(size_t maxReadSize);
 
-    // consuming request body
-    virtual void handleMoreRequestBodyAvailable();
     void handleRequestBodyProducerAborted() override;
 
     void writeReplyBody();
diff --git a/src/http/StateFlags.h b/src/http/StateFlags.h
index 52b86f5edac..8f4dd28ccc2 100644
--- a/src/http/StateFlags.h
+++ b/src/http/StateFlags.h
@@ -56,7 +56,6 @@ class StateFlags
     bool toOriginPeer() const { return toOrigin && peering && !tunneling; }
 
     bool keepalive_broken = false;
-    bool abuse_detected = false;
     bool request_sent = false;
     bool chunked = false;           ///< reading a chunked response; TODO: rename
     bool chunked_request = false;   ///< writing a chunked request