pgAdmin 4 commit: Don't show Upload File icon unless it is in capabilit

Don't show Upload File icon unless it is in capabilities list [Storage Manager]. Fixes #1739

Issue:
When clicked on upload icon while saving a file prompt user to leave page. It is because the icon is a button and its
typeis set to submit which makes it to prompt, instead it should be 'button' 

Storage Manager's menu items depends on capabilities list set by the module using it. If capabilities doesn't have
'upload'in it, It won't work. Upload button is bound to click event only when it is in capabilities. 

Solution:
As upload button is being added only when it is in capabilities, so upload button html is removed from html file. It
willnot shown on UI untill it is in capabilities list. 

Branch
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master

Details
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http://git.postgresql.org/gitweb?p=pgadmin4.git;a=commitdiff;h=3963272523c1061acfbaa78243b77dde5a063d08
Author: Surinder Kumar <surinder.kumar@enterprisedb.com>

Modified Files
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web/pgadmin/misc/file_manager/templates/file_manager/index.html    | 2 --
web/pgadmin/misc/file_manager/templates/file_manager/js/utility.js | 2 +-
2 files changed, 1 insertion(+), 3 deletions(-)