Fixed CI (removed update)

.drone.yml

@@ -6,9 +6,9 @@ pipeline:
   build:
     image:       registry.maggioni.xyz/praticamentetilde/latex:2018-small
     commands:
-      - tlmgr update --self --all
+      - tlmgr update --self
       - tlmgr install blindtext koma-script float hyperref pgf biblatex
-      - tlmgr install pgfgantt listings collection-fontsrecommended comment  
+      - tlmgr install pgfgantt listings collection-fontsrecommended comment
       - tlmgr install biber babel-italian babel-english hyphen-italian
       - tlmgr install logreq xstring
       - pdflatex italian.tex && biber italian
@@ -25,4 +25,3 @@ pipeline:
     endpoint: https://s3.maggioni.xyz
 
 branches:        master
- tlmgr update --self