Remove an unused variable from a header, because it now triggers

the linker on -current into an error about duplicate symbol -- as
two source-files include the same header.

Reported by:	pkg-fallout
Sponsored by:	United Marsupials

graphics/libfpx/files/patch-warnings

@@ -3,8 +3,6 @@ from LLVM10. I admit, that the original author's intent escapes
 me here, so I cannot tell, if we have an actual bug remaining
 in this code.
 
-	-mi
-
 --- fpx/ptil_fpx.cpp	2013-09-02 11:45:00.000000000 -0400
 +++ fpx/ptil_fpx.cpp	2020-03-17 18:11:00.425447000 -0400
 @@ -1200,7 +1200,7 @@
@@ -18,3 +16,15 @@ in this code.
 +    }
    } 
  
+The variable No_JPEG_Header_Flag is unused. But its mere presence may
+cause a "duplicate symbol" error from linker, when it tries to link
+together object files compiled after #include-ing the ejpeg.h header.
+
+--- jpeg/ejpeg.h	2013-09-02 11:45:00.000000000 -0400
++++ jpeg/ejpeg.h	2020-09-07 10:50:07.600375000 -0400
+@@ -31,5 +31,2 @@
+ #define IMG_FORMAT_1111 0x04   /* Four-component non-interleaved image */
+ #define IMG_FORMAT_411  0x05   /* Three-component 4:1:1  image */
+-
+-JPEGEXPORT
+-int No_JPEG_Header_Flag;