diff --git a/src/shared/stream.cpp b/src/shared/stream.cpp
index 6da27f7b5..8632724ba 100644
--- a/src/shared/stream.cpp
+++ b/src/shared/stream.cpp
@@ -68,47 +68,6 @@ extern const int cube2unichars[256] =
     0x43F, 0x442, 0x444, 0x446, 0x447, 0x448, 0x449, 0x44A, 0x44B, 0x44C, 0x44D, 0x44E, 0x44F, 0x454, 0x490, 0x491
 };
 
-//lowercase chars occupy mostly slots 128+
-//upercase chars are mutually exclusive from lowercase chars in the char map
-extern const uchar cubelowerchars[256] =
-{
-    0, 130, 131, 132, 133, 134, 135, 136, 137, 9, 10, 11, 12, 13, 138, 139,
-    140, 141, 142, 143, 144, 145, 146, 147, 148, 149, 150, 151, 152, 153, 154, 155,
-    32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47,
-    48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63,
-    64, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111,
-    112, 113, 114, 115, 116, 117, 118, 119, 120, 121, 122, 91, 92, 93, 94, 95,
-    96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111,
-    112, 113, 114, 115, 116, 117, 118, 119, 120, 121, 122, 123, 124, 125, 126, 156,
-    157, 129, 130, 131, 132, 133, 134, 135, 136, 137, 138, 139, 140, 141, 142, 143,
-    144, 145, 146, 147, 148, 149, 150, 151, 152, 153, 154, 155, 156, 157, 158, 160,
-    160, 162, 162, 164, 164, 166, 166, 168, 168, 170, 170, 172, 172, 105, 174, 176,
-    176, 178, 178, 180, 180, 182, 182, 184, 184, 186, 186, 188, 188, 190, 190, 192,
-    192, 194, 194, 196, 196, 198, 198, 158, 201, 201, 203, 203, 205, 205, 206, 207,
-    208, 209, 210, 211, 212, 213, 214, 215, 216, 217, 218, 219, 220, 221, 222, 223,
-    224, 225, 226, 227, 228, 229, 230, 231, 232, 233, 234, 235, 236, 237, 238, 239,
-    240, 241, 242, 243, 244, 245, 246, 247, 248, 249, 250, 251, 252, 253, 254, 255
-};
-extern const uchar cubeupperchars[256] =
-{
-    0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15,
-    16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31,
-    32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47,
-    48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63,
-    64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79,
-    80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95,
-    96, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79,
-    80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 123, 124, 125, 126, 127,
-    128, 129, 1, 2, 3, 4, 5, 6, 7, 8, 14, 15, 16, 17, 18, 19,
-    20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 127, 128, 199, 159,
-    159, 161, 161, 163, 163, 165, 165, 167, 167, 169, 169, 171, 171, 173, 73, 175,
-    175, 177, 177, 179, 179, 181, 181, 183, 183, 185, 185, 187, 187, 189, 189, 191,
-    191, 193, 193, 195, 195, 197, 197, 199, 200, 200, 202, 202, 204, 204, 206, 207,
-    208, 209, 210, 211, 212, 213, 214, 215, 216, 217, 218, 219, 220, 221, 222, 223,
-    224, 225, 226, 227, 228, 229, 230, 231, 232, 233, 234, 235, 236, 237, 238, 239,
-    240, 241, 242, 243, 244, 245, 246, 247, 248, 249, 250, 251, 252, 253, 254, 255
-};
-
 size_t encodeutf8(uchar *dstbuf, size_t dstlen, const uchar *srcbuf, size_t srclen, size_t *carry)
 {
     uchar *dst = dstbuf,