Remove old and inexisting questions

scripts/surveys/groups.csv

 id,title,options
-1,Auditory Picture Vocabulary Test - English,100,101,102,103,104,105,106,107,108,109,110,111,112,113,114,115,116,117,118,119,120,121,122,123,124,125,126,127,128,129,130,131,132,133,134,135,136,137,138,139,140,141,142,143,144,145,146,147,148,149,150,151,152,153,154,155,156,157,158,159,160,161,162,163,164,165,166,167,168,169,170,171,172,173,174,175,176,177,178,179
-2,Test2,2
-3,Gap,3
+1,Auditory Picture Vocabulary Test - English,101,102,103,104,105,106,107,108,109,110,111,112,113,114,115,116,117,118,119,120,121,122,123,124,125,126,127,128,129,130,131,132,133,134,135,136,137,138,139,140,141,142,143,144,145,146,147,148,149,150,151,152,153,154,155,156,157,158,159,160,161,162,163,164,165,166,167,168,169,170,171,172,173,174,175,176,177,178,179

scripts/surveys/items.csv

 id,question,correct,option1,option2,option3,option4,option5,option6,option7,option8
-1,,1,,,,,,
-2,How old are you?,-1,18-24,25-34,,,,,,
 101,,1,,,,,,,,
 102,,1,,,,,,,,
 103,,1,,,,,,,,

scripts/surveys/surveys.csv

 id,title,groups
-1,Title,1,2
-2,Title,2
-3,TitleGap,3
+1,Title,1